Oh, and the OC does mean over clocked. It is a slight OC over "stock" which has become quite popular. The "afternmarket thing" is talking about the cooler (heat sink /fan) on the 8800 GT. It is very poor. MSI sells a 8800 GT with a non-refrence cooler on it. MSI only has a 1 year warranty on it's cards vs 3 years from BFG or EVGA. (Again, the EVGA card you showed is an old G80 chip. Do not buy a 8800GTS unless it is 512MB. The 640 and 320 are much much slower cards despite having the same name.)