Oh yeah, the specs of the computer are fine, even better than the macbook pro's which are double the price, yours has better graphics, memory, bigger screen, same processor, good hdd. You're okay with the parts you chose.
C2D E6600 @ 3.15ghz w/ 1.35 vcore
2GB G.Skill DDR2-800 (4-4-4-12)
XFX 7600GT xXx