I JUST got these, and THEY ARE (hmmmm, I won't say orgasmic), but simply and truly amazing. The sub is massive though, but massive physical=massive "soundical" lol. Buy them unless you NEED (thought I did, then I realised I DIDN'T) 7.1 surround!
Each single speaker seems to compare with my old 2.1 system, (testing done with sub half way, as a single satelite simply cannot have full sub power output).
Depending on your media preferences, you may want to grab an extra sound card, such as one with OPTICAL OUT, because unless you have a sound card with coaxial out (MUST built in, cable morphers DON'T work). There is a nice one on www.NewEgg.com
for a reasonable $50.00 that has optical out.
I highly reccomend these over anything, you should definately look into them!