I have a 2007 15" 2.4 ghz 4gb ram 320gb 7200 rpm 8600 256mb mbp. The logic board broke so i bought a new i7, my question is what to do with the old mbp. Would it be better to sell it by parts (like the ram, power cord and hdd) or should i sell it a whole broken unit on ebay? Any other thoughts would be nice? Also, how much a difference am i going to notice between my old comp and the new i7. im a graphic designer that uses adobe creative suite daily.