Build me on an 800 dollar budget

Hey all. First time posting here but have been a big fan of Tom's for a few years. The ex wife took my gaming rig I built back in 08 lol, so gettiing ready to build myself a new one. I will be using Fry's Electronics mostly since it is nearby and they price match newegg and tiger direct. I will be using the Intel I5 2500k as my foundation. I already have the case/ windows 7 home 64 bit/monitor/keyboard/mouse/noctua dh-14 cpu cooler and is not included in the budget ( Cooler Master HAF 922 and also bought a red led 200 mm side fan for it ) the rest i need help with. So with 800 dollars, can i build a decent gaming rig?

Approximate Purchase Date: 6-10 days from now

Budget Range: 800 Before Rebates

System Usage from Most to Least Important: Gaming, Watching movies, internet surfing.

Parts Not Required: Monitor, OS, keyboard, mouse, case, cpu cooler

Preferred Website(s) for Parts: fry's electronics in WA, newegg, tiger direct

Country: USA

Parts Preferences: Nvidia or whatever you all recomend =)

Overclocking: Yes

SLI or Crossfire: Maybe later

Monitor Resolution: currently my 1600x900 until I upgrade to a 1080p

Additional Comments: is the noctua NH D-14 a decent enough cooler in your eyes? Also will it be possible to build a decent rig on my budget and with my current parts that is future proof?

Thanks in advance folks!