Your specs look good Trushot, I software box four clients with two machines, I have a champ, two hunters and a minstrel, I keep the minstrel on my laptop. I use Isboxer/Innerspace. Just know that it will take you a lot of hours to get the software set up. Hot keys etc... and just fiddling with window layouts. Let me know if you have any questions.

My main comp I run an I7 920, 12gb of RAM, an EVGA x58 board, and a XFX GTX 285, my laptop is a Dell XPS M1530...... Idle around 20% with three clients, media player, web pages up... other software going lol, yeah 20% idle with the 920 and 30% on RAM, LOTRO tends to be a RAM hog.