I have done searches on the forum, but haven't found any for my situation. So I am currently in the market to replace my year old Macbook Pro due to the NVIDIA GPU problems. I have searched and I can choose between these three, all are like new conditions 24" 2.8 GHZ C2D for $1550 (1066MHz bus) 24" 2.4 GHZ C2D for $1300 (800MHz bus) 24" 2.8 GHZ C2Extreme for 1600 (800MHz bus, 500GB HD) The 2.8 GHZ does come with 2 gigs of ram while the 2.4 has only 1 gig.. but this is negligible since I will be replacing my system with 2x2GB sticks (and the 1.8 is 2x1 GB sticks). The 2.4 is the previous edition. The specs on it notes it has a 800mhz system bus while the 2.8 notes 1066MHz. I'm just curious if that would really have a big difference in speed. On a side note.. I now have a 3rd option. There is also another 2.8 I can get.. which I believe is 800mhz system bus, but it has a 500 gig HD for $1600 Now, if it were totally retail prices.. I would have just gone for the 2.8 because I think retailwise.. its about 11% more in price for ~17% increase in price... but having a $250 difference is a whole different story. This computer is for graphic design work. I've been finding the number crunches for Photoshop CS3 benchmark tests.. and the difference in time is about 3-10 seconds for large files. I will probably replace this machine in about 3 years. Are there other numbers I'm missing? What do you guys think?