Hi Skittles, raphoenix suggested I look into your build since we have the same budget. You can check out my build here: http://www.howtogeek.com/forum.....?replies=4
If you want to reduce your cost, get a cheaper case. I build a PC about 5 years back and spent about $80 on the thing and that feeling of newness goes away very quickly. You could prob get rid of the DVD burners as well.
By the way, I looked on the microcenter website and it looks like the processor doesn't come with any cooling. That's a big one you don't want to overlook. If you post the links to the exact parts you're ordering maybe we can take a closer look.
Your current video card will play games that are out now just fine, but the next gen consoles (ps4, xbox720) are gonna come out in the next year or 2 so the games are going to be made with higher specs which will affect the new PC games as well. Maybe look into a 2gb card.
As far as help, I think we both are unsure of the power supply. I think I'll go with this one for my build:
From what I've read so far, you most likely only need 500W to power your system at full capacity, unless you're planning on adding more things down the road. Take into consideration the efficiency as well, so a 600W one will probably fit your needs.
An expert opinion would be great though.