What is recommended as a more professional quality USB audio interface than the SB MP3+ (or other "gaming" solution)? I only need it to run REW on my laptop. Vista and Win 7 compatibility is required. M-Audio MobilePre looks good. Sound Devices USBPre, too. It has way more capability than I am likely to ever need, but does all that "come along" with the higher quality. Eldirol/Roland has an entrant in that category, but it is w-a-y more than I want - or feel that I need - to spend. The Turtle Beach is interesting, but is it as stable as the M-Audio or Sound Devices?