I've been much happier with the 64-bit Windows 7 actually. What kind of problems are you having?
I am thinking of moving to Windows 7 (64 bit?) from my faithful XP. I only use a computer for recording/post production and for Ninjam/Livestream uses. I am not looping with it and this is a desktop machine. Currently a AMD Athlon 64x2 dual core 6400+. 4 gigs ram although XP 32 bit only "sees" 3.25 gigs.
Are there still issues with drivers etc. Anything to worry about? Also anything on 32 bit vs 64 bit?