i currently have a first gen mbp and i already maxed out the 2gb 667 in it. i know i cant add anymore but i was wondering if getting faster ram will help with any speed increases on my mbp. here's my current setup First Gen MBP 15" 2.0 mhz 256mb vram 2gb 667 320gb 5400 i do a lot of photoshop work and if i open more than 5 images at a time then it will lag. these images are pretty big since they were converted from raw and onto tiffs. i can see putting in a faster harddrive but that's about it. i was wondering if i should just sell this mbp and maybe find a unibody for cheap somehow. will lets say a unibody with only 128vram be faster than my 256vram. around the same specs of course.