Two sites worth looking at:
[broken link removed]
Have booked twice using the above.
http://www.pierreetvacances.com
Haven't used this site but came highly recommended.
Couple of things worth noting:
1. Rugby worldcup in France next year, so book early
2. Car Ferry (Cork to Roscoff) has increased by at least €400 for 2007 sailing, not sure if related to 1 or "oil prices"
3. All contracts are in French (French legal system) and you must pay in full 2 weeks before arriving
4. You will have to pay local taxes about .49c per day per person, this is payable to house owner before you depart.
5. A cash desposit of approx €250 is required on arrival
In both Gites I've stayed in they have been superbly equipped (bikes, barbies, board games, books etc) Owners usually live nearby...but never intrude...other than to deliver fresh tomatoes !!
Enjoy
Eoin