I am 15 and know a lot about Macs. As for the SuperDrive problems, they should verify and repair disk permissions. I know a new Intel iMac user who has not had any problems with his iMac. For the video card, what will you be using it for? 128Mb is plenty for many games and apps, but if you want to play a game like Doom 3 or Quake 4 a 256 Mb graphics card would be much better.