It's early days yet, but I haven't had a single issue or crash with the 64bit Windows 7, nor the M-Audio beta 64bit driver. Performance is fine on my the older dual core mother board I am using (way better than XP and Vista on my older P4 machine) I'll upgrade to an i5 at some stage in the future.

All the real audio apps I have (or am planning to buy come) with 64bit binaries, so I don't really see any reason to stay with the limits of a 32bit OS on this machine. (If worst comes to worst it's only a matter of reinstalling)

BiaB runs ok too (so far), despite it's obvious aging 16bit heritage and messy interface/structure. The only real issue I have is with the bundled virtual instruments... (I suspect they would actually run, but the installer does an OS check and exits).

To be honest, even if they ran, I'm not really interested in using sounds that are more than 10 years old, and in a program that won't run on a modern OS. If I really wanted the sound canvas sounds, I would just get my SC-88Pro back off the friend I lent it to, and plug it into the MIDI interface - but really, it sounds terrible.

...so yeah, I'm looking for a better solution.