Hi, I'm going to build a pc and I have chosen these parts: Case: Coolermaster Elite 310 (silver/black) ATX Motherboard: Asus P7P55 LX (S1156) ATX CPU: Intel Core i3 540 (3 GHz) RAM: 2x2 GB corsair DDR3 1333 Mhz XMS3 HDD: Western Digital caviar blue 500 GB 7200 RPM 3,5" SATA Optical device: Sony NEC DVD-RW GPU: ATI 5670HD (1 GB) PSU: OCZ StealthXStreame 2 500W OS: Windows 7 Ultimate 64-bit Display: Already have a Samsung P2270HD (22" full hd 1080p) I'm going to use it as a replacement for my current notebook. Using it for school, watching movies, listening music and playing some games. I won't be needing extreme graphics or anything, just decent frame rates and decent graphics. I do hope the display isn't too "good" compared to my GPU. Thanks and all the help and opinions are welcome ;-) The GPU is 1 GB DDR5.
Personally I wouldn't build a socket LGA1156 computer at this point in time- that socket is already obsolete. Why not build a (vastly better) socket LGA1155 Core i3 2100 system instead? Going by Newegg's current prices, you're spending $225 between your processor and motherboard, with a $10 rebate on the back end.
So grab this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115078
Along with either of these motherboards:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131713
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128486
And you've got a much better system (both now and in terms of future upgrade options) for $10 less.
http://www.anandtech.com/show/4083/the-sandy-bridge-review-intel-core-i7-2600k-i5-2500k-core-i3-2100-tested/20
If you want a little more expandability (like 4 DIMM slots or a 2nd PCI-E x16 slot) you could buy a more expensive mobo but you probably don't need those.
Speaking of which, the Radeon HD 5670 is fine for your purposes and the price is unbeatable (just $70). But since you already have a 500W psu, this is much better (especially if you want to play games at full HD resolution of 1920x1080).
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121363
http://www.pcper.com/reviews/Graphics-Cards/AMD-Radeon-HD-6670-and-HD-6570-Graphics-Card-Review-Turks-GPU-sub-100/F1-2010
http://www.techspot.com/review/240-ati-radeon-hd-5670/page5.html
You don't need a 500W psu unless you're running graphics cards of the Radeon HD 5770 or higher level. For a Radeon HD 5670, 6670 or GeForce GTS 450, even a 400W psu is enough.
So if money is tight amd you're sticking with the HD 5670, grab a 430W unit from Corsair or Antec. Or keep that 500W psu to leave yourself some spare capacity for future upgrades.
Good luck!