looking to buy a new mbp in the next couple of days and wondering on spec: is there a major difference that i would notice between the base i5 to i7 for work involving CS5 (illustrator, photoshop, indesign and dreamweaver exclusively at this point though post graduation i speculate possibly aftereffects/premier too)? this is assuming that the machine is running on 4gb ram. unsure of which spec to buy, needs to last a good 3-4 years unless see the ability to upgrade earlier and sell on this one. cheaper i5 means could probably afford to put 8gb ram in it in the near future but dont know if will be shooting myself in the foot regarding the slower processor for the applications i'm required to run. (not very good with these things!) Also, SSD is a must and torn between the intel X25-m g2 or the OCZ vertex 2 (80gb/60gb as keep majority of work on backups and only really needed for the system, applications and current projects). Any help would be greatly appreciated! want to get this purchase out the way so can sort out my finances!