What is a reasonably priced pre-made PC I can get delivered to a friend? All I need it to do is play Guild Wars 2, WoW and surf the web. I'd also like it to be upgradable in terms of adding RAM and a new video card so there's some future to it. Should I be looking at Dell? I usually build my own and I'm out of the loop. If I had to put a budget on it I'd say around 500-600 bucks. This is for just a desktop PC, no monitor or keyboard or anything else.