400-450 $$ gaming pc + htpc

Hi!! I currently built a system for media center and light weight gaming. I would like to have general opinions about my build. Just wanted to note that this is not a much future proof system since i just built a 7000 $$$ pc, using the freshly arrived i7-980X paired with a hd 5970 and 12 gb ram.
So here are the links of my system..

PNY OPTIMA 1GB 240-Pin DDR2 SDRAM DDR2 800 29$ x 4 = 116$
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Rosewill TU-155 Black 0.8mm SGCC Steel ATX Mid Tower Computer Case with 400W(20+4 pin) Power Supply (I removed the 400 watt psu and replaced it with a 600 watt psu) 65$
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I also used a combo deal which included a radeon 5670 and a 600 watt modular psu. 130$ (after rebates)
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

ECS G41T-M5 LGA 775 Intel G41 Micro ATX Intel Motherboard 44$ after rebates
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Intel Pentium E5300 Wolfdale 2.6GHz 2MB L2 Cache LGA 775 65W 70$
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

So i built a htpc for around 425$. (note that all my rebates were confirmed).

I would like tom's users opinions about my build.  

Kind regards Nilsi.