i have compared the SB Live, Phillips Thunderbird based card (similar to Acoustic Edge) , and onboard sound on my Iwill Kk266 using my Midiland S4 speaker setup.. and i can't tell the difference.. so i just leave it off and use the onboard..
so.. um.. anyone wanna buy an SB Live or a Philips Acoustic Edge (Sorta, it's the I/OMagic Quad V8 which is basically a different name for same Philips card)