Not in Tuscany but similarly beautiful surrounds Between Naples and Rome.
Large rental apartment in Fiuggi a spa town Just South of Rome. Ideal of exploring the cultural and heritage of the area including the famous Abbey of Montecassino. Easy bus and rail access to Rome. Sleeps 4 in 2 bedrooms. 2008: Available until May 17th, May 18th-31st, June 14th- 21st, July 12th - 19th, August 9th - 16th, August 23rd - September 29th, and from October 6th onwards
Tuscany, Umbria and the Marches:
Cortona medieval hill-top town: Restored farmhouse with separate cottage and pool in rural setting a few minutes from the historic town of Cortona. 2008: Good availability.
Rural holiday rental apartment with panoramic views of the Lunigiana hills near Aulla and Pisa. Glorious wrap-around balcony for lapping up the sun or shade in the heart of this gastronomic region favoured by a certain British Prime Minister. 2 bedrooms, sleeps 6. 2008: Good availability. 
Cortona: Holiday apartments in the centre of this medieval Etruscan arts town. A perfect base for exploring the villages, towns and cities of Tuscany and Umbria. 2008: Good availability.
Coastal Tuscany apartment for rent Minutes from the beach in the coast resort of Marina di Massa in small apartment (2 stories) with balcony, gardens and park for children opposite. Sleeps 4 in two bedrooms. Fully available in 2008, all dates, starting any day of week except 26 July to 31 Aug, when only Sat-Sat. 
Villa hide-away to rent in the rural Lucca hills 16th Century former water mill sleeps 6. A sanctuary with beautiful gardens, Cook and terrace overlooking mill brook. 2008: Good availability. 
Bed & Breakfast at Villa La Chiusa near Lucca There are 5 bedrooms and your breakfast will be served in an elegant dining room or a beautiful walled Italian garden, which has a pool. With several sitting rooms and a grand salon, this is an ideal base for exploring Tuscany and historic Lucca. 2008: Good availability. 
Two apartments in renovated 17C farm setting near Cortona, Arezzo and Assisi in rural Tuscany near the Siena province border. Its central location makes this rental the perfect base for exploring the countryside and towns, amd for enjoying the great Italian wines, history and art of this beautiful region. 1 and 2 bedroom apartments that can sleep from 2 - 6 and can be rented together for larger parties 2008: La Stufa: Available from 3rd May until 10th May, 24th May until 31st May, 15th June to 21st June, 5th July until 12th July, 30th August onwards. La Mimosa: Available until 17th May, 24th May to 31st May, 18th June to 12th July, 26th July until 9th August,16th August onwards Il Bocciolo: Available until May 3rd, 1st June until 11th June, 18th June until 25th July, 8th August until 16th August, and 27th August onwards. 
Siena: Rental accommodation in farmhouse with pool on this farm estate in San Fabiano. 6 bedrooms, 6 bathrooms sleeps 12-20. Smaller villa sleeps 5. Nightly rates available for three single apartments. 2008: Good availability.
Elegant Villa to rent in Lucca sleeps 13 in antique splendour and surrounded by art, yet with all home comforts. Magnificent walled Italian gardens, pool, Cook and banquet 'tavern' in grounds. Fit for a King! 2008: Good availability.
Renovated cottage in old mill house with beautiful terrace views in a rural setting in the Lunigiana region of Tuscany, Italy. Sleeps 2-3. 2008: Good availability. 
Villa in Lucca with pool Large luxury villa with 6 bedrooms for up to 12 people, staffed with Cook. Very beautiful with four poster and half tester beds and the Drawing Room has a piano. 2008: Good availability. 
Apartments to rent in renovated mill on Villa Maionchi farm near Lucca sleeps 2 or 6 with views and pool. Featured in The Daily Telegraph by the author of 'Real Italian Food', you can watch the grapes being harvested and drink the wine. Agriturist in a genuine rural fattoria at its best. 2008: Good availability. 
Agriturismo farmhouse villa rentals on the Fattoria Spinola estate, just South of Perugia. Swimming pool, and beautiful rural setting. 2008: Good availability. 
Cortona: 13th century cottage in hill-top overlooking Cortona set in 1,000 acres, this wonderful rental property occupies a unique rural setting, with wooded trails from the front door. Near to the arts town of Cortona, this cottage is the perfect holiday retreat for walkers, artists and writers. 2 bedrooms sleeps 5-6. 2008: Good availability.
Tuscany Farmhouse Rental Large 4 bedroom farmhouse villa with apartment a panoramic rural view and pool, sleeps 12 2008: Available until May 17, May 31 - June 16, June 21 - July 5, August 30 - September 27, and October 11 onwards.
Comano, Lunigiana: Converted stables holiday property with old stone walls, heavy beams, terracotta floors and al fresco dining on a private terrace. All the ingredents for a perfect holiday in the Tuscany countryside, yet within easy reach of the coast. This wonderful Tuscan property in a village setting has two bedrooms and sleeps 6.
Bed and Breakfast in Lucca: A 5 bedroom B&B in the centre of historic Lucca, in a sixteenth century Palazzo. Minutes from the railway station, bus station, central square and main street. 2008: Good availability. 
Comano, Lunigiana: Two rental villas in a restored old mill One villa sleeps 2 and the other sleeps 4-6. Exposed stone walls, heavy beams, terracotta floors and al fresco dining overlooking a mountain stream. All the ingredents for a perfect holiday in the Tuscany countryside, yet within easy reach of the coast. 2008: Good availability.
Cortona: Renovated stone cottage overlooking Lake Trasimeno in the grounds of an ancient Roman fortress. Set on a hillside with olives and fruit trees, this cottage has a master bedroom and third bed in an adjoining alcove. Just a few minutes drive from the arts town of Cortona. Sleeps 2-3. 2008: Good availability.