I have a philips acoustic edge, it's awesome! I'm using it in my kt7-raid system, and I have no compatability problems at all. I must advise you to stay away from creative. Their cards are picky about what system as well as what OS you use with them. I also notice a difference in the sound quality (AE has fuller high/mid range sound, unlike the "wimpier" output of SB live 5.1). The AE works in intel/amd systems running win9x/ME,NT4,and 2k--basically whatever you put it in. As far as the speakers go, I do not like cambridge sound. They sound bad in the mid/high-sound range. I'm using a set of klipsch promedia 4.2 ($320 from klipsch.com, hurry!) and a set of boston BA635's as my center/sub (for full 5.1 support). Any forum will tell you that then klipsch promedias are quite possibly the best computer speakers out there, even for being analog. I love my sound system, and I let my entire dorm know it.