The OST is great!
I have this OST and it's great. It has every song in the movie pretty much in sequence. You owe it to yourself if you like the film.
http://www.amazon.com/Plein-Soleil-Nino-Rota/dp/B000BU99JW/ref=pd_bbs_sr_2?ie=UTF8&s=music&qid=1198733466&sr=8-2