Seeking advice on the right power supply

To say I'm not the most computer literate person, In respect to PC building, is a conservative understatement. I'm throwing one together on a website and I have a choice to make regarding the power supply. I'll post the components of the PC that I have so far, would anyone care to advise me on the proper amount of power needed?


CPU Processor :
Intel Core 2 Duo E7200, LGA 775, 2.53GHz, 64-Bit Dual-Core, 3MB Cache; 1066MHz
Cooling Fan :
Intel factory Auto-RPM Silent CPU Air Cool
System Board :
MSI nForce 750i SLI, 8GB DDR2 Max, SLI, RAID,1394, S/PDIF, eSATA, Audio, GbLAN. [ P7N SLI Platinum ]
RAM Memory :
4G (4x1GB) PC6400 DDR2/800
PCI-E VGA :
Geforce 9800GTX+: 512MB
Hard Drive 1 :
320GB SATA-II 7200RPM
Optical Drive 1 :
20x Dual-Format/Dual-Layer DVDRW Driver
Sound Card :
High Definition 7.1 Digtial Surround Sound
Speakers :
2.0 Systems: aBX MM2. [ 669-8817 ]
Network :
Integrated onBoard 10/100/(1000) Port(s)

The list of options for power supplies from the site are as follows:

aBX, 550W Power Supply [ PSU ]. Model: BLACK-550 +$22.25
aBX, 650W Power Supply [ PSU ]. Model: BLACK-650 +$49.00
aBX, 750W Power Supply [ PSU ]. Model: BLACK-750 +$83.25
aBX, 850W Power Supply [ PSU ]. Model: BLACK-850 +$124.50
aBX, 1000W Power Supply [ PSU ]. Model: BLACK-1000 +$196.75
aBX, 1200W Power Supply [ PSU ]. Model: BLACK-1200 +$231.25
Antec EarthWatts, 650W Power Supply [ PSU ]. Model: EA650 +$78.50
Antec NeoPower, 650W Power Supply [ PSU ]. Model: NeoPower 650 Blue +$99.00
Antec NeoPower, 650W Power Supply [ PSU ]. Model: NeoPower 650 +$92.75
Antec True Power Trio, 650W Power Supply [ PSU ]. Model: TP3-650 +$88.50
Antec TruePower Quattro, 850W Power Supply [ PSU ]. Model: TPQ-850 +$158.00
Antec TruePower Quattro, 1000W Power Supply [ PSU ]. Model: TPQ-1000 +$202.25

I'm know I could go with the most expensive ones and definately be safe, but I'm on a pretty limited budget so I do have to be careful.

Thank you so much, in advance, for helping me out with this. It is greatly appreciated!

PCPower and Cooling and Corsair always come out tops on Tom's. I use a Corsair HX520 and it runs my Q6600 @3.2 and HD4870 rock solid.

I think your best choice is the Antec Neo Power blue. The price is good, it's built by seasonic and its modular. Also look at this link.
http://www.hardwarecanucks.com/for [...] eview.html
The Neopower is more efficient. Oh yeah, I own this PSU and its great.

Actually I didn't want to add a second card. it is a default option on that site, and I meant to delete it when posting the specs here.

And thank you so much for the help so far guys and gals. youve been great!

yea those were the only options available to me from the site. it is pcusa.com

The old Neopowers had poor capacitors and were terrible.

However, in the office I have four (I think) running 24/7 powering various configs, they are very good now. Also the fan configuration and cable lengths are perfect for the Antec P182 case

Even though they use smaller 80mm fans, they are still very quiet - highly recommended.