So I need a new computer

I've (somewha) decided to build my own now. A friend's bf builds his own as well and I'll get his help when I'm puzzled (or just do it together). Some dude on youtube specd a pretty nice rig, with everything I need basically. It is a
C2Q Q9200
4gig ram
5770 vid card
1TB
and all the rest that's needed
He said he made it for 700$ total. That sounded rather low though, so here is the new question. Say I was to build my own on a 700$ budget, could I build a rig spec'd close to that?

You could buy a Phenom II quad for same/less than that Core 2 Quad and get same/better performance. (And if you're thinking about virtualization, the C2Q lacks support for EPT/RVI.) Like I said before, AMD's processors are usually better when your budget has less than $200 allocated to the CPU.

The rest looks just fine. Obviously, the 5770 is overpowered for Maple, but you never stated what other games you play. The guide on Tom's Hardware states for the 5770: "Great 1920x1200 performance in most games." So you can get by with a lesser card if you're going to play at a lower resolution.