hi guys. The tower as stands seems to have zero midi capability, and no "asio", another sound standard which I require (there is an "asio4all", but it isn't much good). It's got plenty of USB slots, so maybe I can use midi there, but that remains to be seen. The lower slot seems to be occupied by the (controller?)...attached by ribbon to hard drive platofrm and the HDDs. The upper slot appears to be vacant, but is greatly overhung by the video card and its fan, which seems to be in a special (black) slot above it. This, as best as my descriptions allow, is what I see in there. The guy at comp USA said I could swap to some other kind of hard drive, and move things around, but that sounds heavily cannibalistic.