I'm looking at buying my new computer I need to last for next 5 years while daughter is in college. Found an i7 2600 system running under $1000, but wondering about graphic cards they offer with it. I know Sandy has onboard, but I do play a little Warcraft and like Ultra settings. Have 23" LED monitor right now. Card options are a 1GB Radeon 5770, a 2GB Radeon 5570, or a 1.5GB NVIDIA GeForce GT 440. Any thoughts? Thanks