I am coming to CERN in mid-May, but have someone to stay with for up to a month. So, I could possibly share a flat starting mid-June. Have you found anything? And, where are you looking to live? Meyrin is quite close (walkable, I think) and in Geneve I think a transport pass is included in rent. But I think (from what I've seen) there are more options for 2 bedroom (or more) places in France; St. Genis, Gex, Ferney-Voltaire.
About myself: I'm a fairly young American grad student, pretty neat, like to cook and am sociable but not a party animal.

I like to read, watch movies, listen to pretty much any kind of music, the kind of stuff everyone likes I guess.
Also, I know another student from my school who's coming to CERN for a year, like me, at the same time. He may be up for a 3 bedroom flat or a house, I don't know for sure though.
Rozmin