id like help with speaker selection please

im considering these options...

:JBL Invader 4.1 speaker system

:Altec Lansing ACS 251

Altec Lansing ACS 5100 (though ill take my chances with the lower priced ones, this is just too expensive, plus i hear the subwoofer burns out easily)

:ALTEC LANSING XA3051 5.1 ULTIMATE (like this 5100, its a bit too expensive but i dunno, comments?)

:Altec Lansing ATP5 (seems like a good one, dunno)

:Logitech z640

so as you can see, my budget is around P5000 to P7000 (roughly $100 to $140)

im also considering (and actually leaning towards) a set of Creative Inspire 6600 6.1 speakers set. The main reasin is that a)theyre relatively cheap b) seems a to have a good price/quality/value ratio and c)a good 6.1 speaker investment (well its probably gonna be a standard soon, if not will its a 6/5.1 speaker then heh)

and no, plese dont tell me to get something like megaworks or someting. Im not an audiophile, heck no, i just want something to make my games sound great (im using a cheap arse 2 speaker set, i mean, cmon, anythings better than this!)

so id appreciate any comment, suggestions or whatnot. many thanks1