i'm agree with u, i think that a good pc isn't so important, a good mouse may helps, but only a bit, i have an old 2+wheel mouse and so on...all these guys are good and that's all.

the only little advantage that some of they could have , like i'd said before,is the ping time...

In the past i've played in a server with a killcam...i notice that what do u see in game isn't exactly what others see!
for example...more than 1 time during the game I shooted a player b4 him, but he kills me...when I watch the killcam i saw that he shot me, but i don't shot him...this is what happen when 2 player have a lot of gap in ping time, but this isn't the main reason...it's a very little part of time(ms), if u are fast u fill this gap....the problem is when u are against players like Mike, he's very fast and have a good ping and (to?) be faster is very hard!!

SO SeeDaLite, OPEN TORRENT(or similar) WHEN U PLAY AND MAYBE WE COULD KILL U ^^