Hello everyone, i am having a bit of a conundrum trying to figure out which model of MBP to purchase. I typically work with pretty big photography files and do occasionaly work with hd video in final cut as well. I would be replacing a 2.8ghz MBP C2D processor, 500gb hdd 9600 512mb with 8gb of ram, this computer sadly thanks to one of my friends met an unfortunate end. I dont mind waiting longer for video encodes since i dont do it so much, and found the 2.8ghz i had to be sufficient for most tasks. 75% of the time the computer is hooked up to an external monitor. Whatever i get i would eventually be replacing the hdd with a solid state once they go down in price, and popping some aftermarket ram in too so those arent really sticking points on which model to choose. My debate is between the 15 inch i5 and the 15 inch i7. I am wondering for my purposes will the difference in the 256mb vs the 512mb cause me issues either with photoshop or running things on a 24-27"