I've got a BVision installed in my A1200 desktop and it works like a charm. No sudden crashes or anything (although I did add extra cooling fans inside) I can play WipeOut without any problems, so it doesn't fail. Although some people have had bad luck trying to fiddle the BVision inside the original case. (So I've been told) If you are interested in the 3D performance I wouldn't go for the BVision, if you just want to use your amiga for programming, use the BVision coz that should be more than enough, and personally I always prefer the original cased A1200 rather than the tower-version. (Same for the PPC-card)
