I'm not no computer hacker! howz you expec me to know!

Looks fine to me.

Looks like a good build. I see that you are picking up a nice heatsink fan combo for your processor. Good choice, but if you are going to overclock I would suggest getting some thermal paste. The stock Intel paste does the trick but I would recommend spending the extra ten dollars.
Also, if you have a monitor currently I would suggest holding on to it till you can afford a better monitor than what you suggested. It is a TN panel so the viewing angles aren't that great, and the lower resolution (900p) means that games will look like shit no matter what hardware you throw in your computer. You have to remember, your face is going to be at most a couple of feet from the monitor so, unless you pick up a minimum of 1680x1050  resolution, you are going to notice a significant amount of pixels. 
Great sub $900 build though. Most people skimp on things like the power supply and case to reach that price.

" interesting build so your going for a   9 power supply into a 12 Radeon? "

" interesting build so your going for a   9 power supply into a 12 Radeon? "

Did u consider getting a Core 2 Duo? If u go for only 2 cores I think that's the best choice, but I might be mistaken. You can check this resource:   http://www.tomshardware.com/reviews/best-gaming-cpu-core-i5-athlon-ii,2675.html 
I also would storngly consider to get a 22" oder 24" screen. They are not really mroe expensive than ur 20" model and offer some extra screen estate. 
Another thing I just realized is that u should get a 1TB hd. U can NEVER have enough HD space and 1TB models offer a greater price/GB than 500gb models. 
Edit: I would expect that u can't run games all actual games on (very) high settings with that machine. You would have to put in like 200 - 300$ extra. So maybe that's something for you to consider. I still think u will have  alot of fun with it if You don't expect top end performance.

" @Fragstoff said:

" interesting build so your going for a   9 power supply into a 12 Radeon? "

Huh? I don't understand what you are saying here. Are you talking about voltage? Because the Corsair is has 52amps on a 12V rail and that would work well for two Radeon 5770's. Hell, this power suppply is even recommended by ATI. "

" @Fragstoff said:

" interesting build so your going for a   9 power supply into a 12 Radeon? "

Huh? I don't understand what you are saying here. Are you talking about voltage? Because the Corsair is has 52amps on a 12V rail and that would work well for two Radeon 5770's. Hell, this power suppply is even recommended by ATI. "

well it looks ok, but I would also recommend a 1 tb hard drive and maybe a quad core processor? where I live those are only 30 bucks more....

1) I'd swap out that CPU for at least an Athlon II X3 or an X4. Especially since the X3 is actually cheaper.
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103843
 
2) The PSU is overkill for that build. A 550VX or even a 450VX would suffice.
 
3) I'd probably get a 22" monitor instead. They're better bang for the buck in terms of screen size vs price, since they only cost just a bit more than 20" screens.
 
4) Consider getting this cheaper Sapphire HD 5770 instead of the HIS one:  http://www.newegg.com/Product/Product.aspx?Item=N82E16814102873
Costs $135 after rebates. Alternatively, if you can afford an extra $40 over the HIS card, consider going for a GTX 460 for better performance ( 768MB version costs ~$200, 1GB version costs ~$230).

The previous setup would have worked as well, except for the cpu that is not in supply and the heatsink you had which needed a tube of thermal paste, either AS5 or MX-2.
 
The current setup should work. Are you happy with your choices? There may be an issue though. The motherboard seems to come with one SATA cable in the box ( the newegg picture shows). You have 2 SATA drives: the hard drive and the dvd drive... you need an extra SATA cable. I don't think the dvd drive comes with it, a reviwer on newegg said it didn't.
 
Side note: You are using 2 sticks of memory in your current setup, which is just fine; no problems. The motherboard has 4 RAM slots. If in the future you decide to fill up those 2 empty slots, I don't know if that heatsink fan will be blocking the RAM from being inserted.

" @Fragstoff said:

" interesting build so your going for a   9 power supply into a 12 Radeon? "

Yeah seems like he's going for an early graphics rush "

the ram choice... seems to not go with the motherboard..