$600 ish dollar budget gaming pc

[iHateMac]

I need a budget gaming pc for around 600-700 dollar range and building one is not an option right now. looked around and found this http://www.amazon.com/CyberpowerPC-GUA110-Phenom-Gaming-Computer/dp/B004PINTZG/ref=pd_sim_sbs_e_4

i know im gonna have to buy some after market parts to make it better but this looks like a good start. need sugestions, what would i need to buy to make this preform well enough to play elder scrolls oblivion or newish games with a decent quality? dont need anything fancy.

 

[PixelVandalism]

The graphics card in that computer is quite weak, and the PSU is not mentioned, so it's probably a cheap dodgee one.

Why is building your own not an option? for $600 you could build a much better computer than that with quality parts.

Look, for $583 Before rebates or deals..

MOBO (AM3+ Future proofness) - http://www.newegg.com/Product/Product.aspx?Item=N82E16813128490

CPU (Better processor than X4 840) - http://www.newegg.com/Product/Product.aspx?Item=N82E16819103808

GPU (6670 is much better that 5450) - http://www.newegg.com/Product/Product.aspx?Item=N82E16814150542

RAM (This ram is almost guaranteed to be better) - http://www.newegg.com/Product/Product.aspx?Item=N82E16820145346

PSU (Corsair make good PSU's) - http://www.newegg.com/Product/Product.aspx?Item=N82E16817139018

CASE (Better looking, no Annoying door) - http://www.newegg.com/Product/Product.aspx?Item=N82E16811119216

HDD (Good HDD) - http://www.newegg.com/Product/Product.aspx?Item=N82E16822152185

If you would be OC'ing

COOLER (Better than stock) - http://www.newegg.com/Product/Product.aspx?Item=N82E16835233081

It's not even hard to build a computer, I did it for the first time about a month ago, it's fun and you feel good when you finish, and after rebates it would be even cheaper.

Oh if i'm missing something can someone please fix it XD.