From my experience, ANY sound card works fine with CUSL-C... It depends more on which OS you're using. If you're using W9x, Areal-based sound cards (MX300, SQ2500, etc.) will give you the best bang for the buck, IMO. Great sound quality & you can find one for around $25 on the FS/FT forum. For W2K, my recommendation would be the SB Live value... Good luck.