Just build best on ur budget. I am with kronos.
You don't need the latest and greatest thing. Because before you know it, you want the next best thing.
It becomes a vicious cycle.
Just get a nice motherboard with a decent cpu and decent gpu. It should last 4-5 years.
I bet we could do it without spending monstrous amount of money. I think budget wise $900 is doable.
here is a nice reference:
They have a gaming pc build on budget with $500, $1000, $2000 with test and benchmarks. You check it out
http://www.tomshardware.com/reviews/bud ... ,2903.html