hello. I just sold my 2.4 ghz imac ALU, which i bought on launch day. Either i can buy a used Macbook Pro 2.2 Ghz, 2 GB, 8600 GT 128 MB in mint condition but with no guaranty. Or i could buy a Macbook Alu 2.0 Ghz. The fact that the MBP do not have a guarantee scares me a bit. I do like the bigger screen and the old design with all silver. What would you do? Most of you maybe would focus on the screen size and say "Hey, just buy the MB and get a external display for home use". Which has the best graphic card? Is the display better quality on the MBP? Is it risky buy laptops used? What should i look at if i get to try it before i buy it?