I recommend the Sound Blaster series type of cards. I trust them and I've never had a problem out of every Sound Blaster card I've purchased and the quality of sound sounds great! Especially my Sound Blaster Audigy Internal as it powers my 7.1 Surround System without giving me any problems and provides performance boost through playback of sounds. The latest one for Sound Blaster should be Audigy II but its pretty expensive card yet well worth, but if you want something a little cheaper yet still good quality, I'd go for Audigy. Check www.soundblaster.com for details.