New build - Need advice on PSU and GFX card

[cowpow]

Here's my proposed set-up. Please check and see if everything is compatible and happy.

Approximate Purchase Date: Before February
Budget Range: <1000 After rebates
System Usage from Most to Least Important: Light gaming, internet
Parts Not Required: Keyboard, mouse, speakers, OS
Preferred Website(s) for Parts: Reputable websites / in-store is fine
Country of Origin: USA
Parts Preferences: No preference
Overclocking: No
SLI or Crossfire: No
Monitor Resolution: 1920 x 1080

Motherboard
GIGABYTE GA-P55A-UD3 LGA 1156 Intel P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128412

Processor: Core i7-870

GPU
Either
XFX HD-577A-ZNFC Radeon HD 5770 (Juniper XT) 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150447&cm_re=5770-_-14-150-447-_-Product

or

EVGA 01G-P3-1366-TR GeForce GTX 460 SE (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130591

RAM
CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145260

HDD
Western Digital 1 TB Caviar Blue SATA 7200 RPM 32 MB Cache Bulk/OEM Desktop Hard Drive WD10EALS
http://www.amazon.com/Western-Digital-Caviar-Desktop-WD10EALS/dp/B0036QF0BE/ref=sr_1_1?s=electronics&ie=UTF8&qid=1292930610&sr=1-1

Optical Drive
ASUS Black 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache SATA 24X DVD Burner - Bulk - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16827135204

Case
Antec Three Hundred Black Steel ATX Mid Tower Computer Case
http://www.newegg.com/Product/Product.aspx?Item=N82E16811129042&cm_re=antec_300-_-11-129-042-_-Product

PSU
CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005

Questions:
- What voltage PSU do I need?
- Which graphics card would be better? 5770 for $130 or GTX 460 for $150?
- Should I get 8 GB of RAM?
- The only difference between the Antec 300 and Antec 300 Illusion are the two additional fans (plus lights) in the front. Are the two fans necessary?

Thanks for your help.

 

[mdd1963]

I'd opt for the 460, a very solid midrange card....

if pondering SLI in the future, get at least a name brand 750 watt PSU..

 

[banthracis]

Fill out form in sticky, link in my sig.

Need to know purpose of build and overall budget.

Also, sandy bridge in 2 weeks, silly to buy a platform that's being replaced in 2 weeks.

Also, links are broken.

 

[cowpow]

@mdd1963: Yeah I was opting towards the 460 as well. I probably won't go for SLI.

@banthracis: I'm not looking to get the top of the line components. I think my current set-up will be more than enough for what I'm looking to do. Do you think I should wait for Sandy Bridge to come out before buying my parts? Do you have any advice for PSU?

 

[banthracis]

Sandy bridge will give you much better performance at the same price point.

If you wait 2 weeks you either get much for your money, or get the same for a lot cheaper, hence wait.

Anytime a new product comes out in an industry, it drives price of an old product down, basic economics.


PSU wise, a Corsair 650TX is a good buy for your needs. $80 after MIR
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005&Tpk=650tx

Antec EW 650 $70 is also something you can consider
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371015&cm_re=antec_650-_-17-371-015-_-Product