first, get rid of the DVD drive unless you actually need it. most people never use them any more and on a build this cheep the money you put into the DVD drive could go into something ells. get 2133Mhz RAM. because the graphics processor built into the AMD FM2 processors uses the system RAM, the faster the RAM is the better you graphics processor will perform. and the 430W power supply is fine, i wouldn't want to go any lower than that because most of the really low watt power supply aren't made very well, i wouldn't trust them. coursair is a great brand that's a great power supply.
for that money i would do this
Processor: AMD A10-5800K ........................................................$129.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16819113280
Mother board: MSI 760GM-P34 .....................................................$69.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130657
RAM: G.Skill Ripjaws X Series 8GB (2 x 4GB) 2133Mhz ..................$63.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231476
Hard Drive: WD Green 500GB .........................................................$69.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16822236155
Power Supply: Corsair Builder Series CX430 ....................................$44.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026
Case: XION Gaming Series XON-560_GK .........................................$39.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16811208052
Total .............................................................................................$388.94
This will perform a little better than the one you link too and costs a little less. this should be a great little computer for a gamer on a budget :)
oh, and what ever you do, don't get windows 8. get windows 7. it's a great OS and if they ever get around to making windows 8 actualy usable for gamers you can easaly upgrade later for $60. but for now, i strogly recomend staying with windows 7.