Replying to Building a Gaming PC

First of all I wasn't quite sure if I should have put this in NSG or here, but I figured I would get a more mature crowd over in M&A's so here goes.

I'm planing on building my own gaming PC for the first time. I have no prior computer building skills and will mostly be following an online guide. My question for you is do you think I'm buying the right parts to make my experience be the best bang for it's buck. I am not looking to break the bank with this thing so I'll be trying to save on whatever I can.

Any feedback or tips would be much appreciated! Definite plus karma for any response.

Thanks! (Parts I am thinking of using below)


Motherboard
GIGABYTE GA-Z68X-UD3H-B3 Intel Z68 ($160)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=353599&CatId=6975&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=iFudSkud_Rc-0naDTdmUQvRfd2dEnZ0uTA

CPU
Intel Core i5-2400 Quad-Core ($190)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7073164&Sku=I69-2400&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=iFudSkud_Rc-so.uNIL8kdfOStKnJzZ_ww

RAM
Corsair Vengeance DDR3 8GB (2x4GB) ($45)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=40739&Sku=C13-5720&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=iFudSkud_Rc-V9Fl1Lxx5W2sZ8EUJIsfGQ

Video Card
EVGA GeForce GTX 550 Ti ($120)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=41125&Sku=E145-0550&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=iFudSkud_Rc-nMNJyU1B9L4YT4avy1FTOw

Hard Drive
Hitachi 500 GB ($110)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6091097&CatId=2459&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=iFudSkud_Rc-iMFuBlhSHC3JwNBLZtUSnw

Optical Drive
Lite-On Internal 24x CD/DVD Drive ($18)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4829307&Sku=L12-1312%20OEM

Case
Cooler Master Elite 430 Mid Tower ($50)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6430030&CatId=1842&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=iFudSkud_Rc-_pvBCRN86au0mriPi4UTTA

Power Supply
Cooler Master eXtreme 500 Watt ($30)
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4465483&CatId=1079&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=iFudSkud_Rc-7te.C4vsV8RyLZ0OpC0dRg


($723)