i have the px21, not bad i guess, good for sound whoring in cod games (cod4, waw, mw2) not so good in bc2. but im quite happy with it, bought it when i was in the uk, wanted to buy the astros but its too expensive for me. i tried using normal stereo headset with the headphone jack from my lcd, u can hear 'footsteps' but you wont be able to know which way theyre from. px21 does the job pretty good. if u have money to spare, go for true surround sound headsets