Shadow209, on 14 November 2012 - 11:59 PM, said:
Since I'm not completely up-to-date I can only give you some basic advice:
If you don't want to overclock, you can get a cheap mainboard, but don't save on the psu.
Also if you don't want to overclock, you could just get the i5-3570 (without "k").
I wouldn't recommend overclocking if you are on a budget. Generally, if you do that, you'll want to get a better cooling system then what comes stock with the CPU. Echoing the thoughts above, you don't need an I7 processor. I run I5 and have all my settings maxed, game runs extremely smooth. I'd say 8 gigs of RAM is about right as well. From what I've seen, GW2 is pretty CPU bound right now, though that may change as they further optimize the game. I'd put about equal emphasis on CPU and graphics card.
Sites I would recommend shopping at are Newegg, Tiger Direct, and Amazon. Newegg generally has some really good deals on all of their components, so I would browse their daily and see what deals you can get on monitors (and other components). Sign up for their email list and you can get additional savings.