Hello all! I am first post new here so I'm not really sure where this should go but i figured here couldnt be too bad. Anyway, ive had my macbook for 2 years from may of '08. However, i feel like alot has changed in the computer world since then and I am thinking of getting a new computer. Mine isn't slow at all but it has a GMAX3100 which cant play source games which I would like to get into. I have about $800 kicking around but could save up if necessary. I was just wondering if it may be time to get a new iMac or Macbook pro, and if that would make any sense at all, or if the money is just burning a hole in my pocket and macs have a generally accepted life-cycle that i should wait out. Thanks!