PC Gaming Build for $600-$800

Approximate Purchase Date: Before the end of September

Budget Range: $600-$800, after rebates, before shipping

System Usage from Most to Least Important: gaming (e.g., Guild Wars 2, Starcraft II, Diablo III), surfing the internet

Are you buying a monitor: No

Do you need to buy OS: no

Preferred Website(s) for Parts: Amazon, since I already have a store card with them (though I am willing to go new egg

Location: Jersey City, NJ

Parts Preferences: Intel i5

Overclocking: Maybe, but I probably won't

SLI or Crossfire: no

Why Are You Upgrading: I used to use my laptop for gaming, but that is quickly becoming dated. I'd like something that can run today's games relatively well, but for not so high a price.