I do think the Audigy 2 supports midi and asio drivers. What you really need to check for is the possiblities to plug in instruments or samplers, recording devices such as dat tapes and so on, and also check that it's compatible with the software you intend to use. It all really depends on how far you need to go with your music editing. I would say that an usb audio card must be checked for instant playback possiblilities, with the minimum latency, which may be a lot longer than with pci cards. But seems to be your only choice, due to your video card.