Dec 9, 2012
I'm building a new gaming PC on a budget and I was wondering if this PSU will be enough:

Intel Pentium G2120 3.1GHz Dual-Core Processor

ASRock B75M-DGS Micro ATX LGA1155 Motherboard

Mushkin Blackline 8GB (2 x 4GB) DDR3-1600 Memory

Western Digital Caviar Blue 160GB 3.5" 7200RPM Internal Hard Drive,200RPM_SATA_30GB-s_35_Internal_Hard_Drive_WD1600AAJS_-_Refurbished

Video Card
EVGA GeForce GTX 650 Ti 1GB Video Card
XFX Radeon HD 7850 1GB Video Card

Zalman Z9 Plus ATX Mid Tower Case

Power Supply
Thermaltake Smart 430W 80 PLUS Certified ATX12V Power Supply

Operating System
Microsoft Windows 8 (OEM) (64-bit)

Gigabyte GM-M6880 Wired Laser Mouse

Please note that I have two video cards, and I am asking about them separately. I realize I can't use them at the same time.
Here is what I'd consider:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Pentium G860 3.0GHz Dual-Core Processor ($67.99 @ Amazon)
Motherboard: ASRock Z77 Pro3 ATX LGA1155 Motherboard ($89.99 @ Amazon)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($44.99 @ Newegg)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($59.99 @ Amazon)
Video Card: XFX Radeon HD 7850 1GB Video Card ($174.98 @ Newegg)
Case: Rosewill REDBONE U3 ATX Mid Tower Case ($49.99 @ Newegg)
Power Supply: Antec 450W ATX12V Power Supply ($38.99 @ Amazon)
Optical Drive: Sony AD-7280S-0B DVD/CD Writer ($18.99 @ Newegg)
Total: $545.91
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-01-01 02:55 EST-0500)

* CPU is plenty for budget gaming!
* Mobo has all of the benefits of a z77 based Mobo (shouldn't have to upgrade this part during the life of the PC).
* GPU is one the best in this price range! Has a $20 MIRc so actual price after Promo code is $155!!!
* Case has Front USB 3.0 ports! Comes w/3 fans!
* RAM is has low profile heat spreaders, so you will have room for aftermarket CPU HSF's if you buy one later!!

Not really. The 22nm will consume a bit less power, but not a whole lot of concern in a desktop CPU. As far as the OS is concerned, I usually don't list them, because you can get them from different sources (School discount, upgrade discounts, etc.).