So i started working at best buy about 8 months ago selling computers(doesnt mean im an expert or a solid computer whiz), I have a increasing appreciation for computers along with a strong desire to build one, but that would be horribly irresponsible with my cash flow and small savings. What I was thinking: I have a Dell Inspiron 560 with a celeron 450, DDR3 (ive realized that's a plus), 4 gigs of memory. Could i change out to a newer board and get an I5, or is that not feasible? I run photoshop frequently (runs fine, my system is clean as hell nothing is on it that doesnt have to be) and play Civ 5, but it sucks. Should I just pick up a core 2 or a core 2 quad? I know one suggestion is going to be alot more then the other one monetarily.