hey, I'm trying to build a gaming computer for the first time. At first i was just going to go the Intel route, but if there's a cheaper option going AMD while still maintaining power I'd like to go that way instead. I want to stay under $1800 (including a 21.5 in. monitor) preferably, but i also want to have a future proof system that can tackle games such as "Crysis 2" on ultra settings with ease. Any suggestions? I was at first thinking of an Intel I5 3570k Ivy Bridge.