ProMusic27
CakeAlexS
Stop monkeying around and go 64 bit ;)
ahahahahaha... I already am in 64... I was just speculating...
I personally want 32 bit operation in 64 bit Win 7 And Sonar so I can use the Fantom VS Synth which is 32 bit and works via bitbridge in 64 bit Sonar and Win 7. Quite frankly, it operates like a quick fix patch. Most anything you want to use that is 32 bit should work with bit-bridge. That is the theory. At this point it's a try and see if it works scenario. It's really going to depend on what you're doing and whether you actually need all those extended resources. If you can't get what you want out of 64 bit and don't really need it, use 32 bit.
I really use the Fantom VS Synth for composing so having it work is important to me. But you may assess your needs to be different.