Power Supply for E8400?

A 500 W psu should be good enough. Consair, Antec, Thermaltake, Enermax, I would stick with those brands when choosing a psu. Forgot to mention Pc power and cooling.

Sad news
If you'll Cross Fire 2 cards 4870 and be on the safe side you'll need 1000W
With Mobo+E8400+1X4870+2Hdd+4G DDR2+5Fans+2Drives+2 PCI cards and some safety
You'll need Minimum 750W

You should be totally fine. Didn't you read the article today? in the $1000 build they were able to SLI 8800GT's under a 400-watt power supply, which really doesn't surprise me. Anything above 350-watts should be plenty, as long as it's a decent quality brand.

E8400 = less than 33 watts assuming the E8500 does in fact use more power, look here;
http://www.xbitlabs.com/articles/cpu/display/intel-wolf...

Don't know where you came up with the card wattage, but it's max power draw is 110 watts not 230w.
As was stated, a good quality 350 watt psu will work, but a 500 would leave plenty of overhead.

Here are a couple that can handle basicaly anything you can throw at them and will last you for future builds.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I got this one at Fry's for $80
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
open box and I can run 2x8800gts 512 with it on my wifes rig.

Ahh, cool... Thank you for helping me out, really appreciate it.

That's a good question I was about to ask mysefl. I have:
E8400 at 3.4GHz (Zalman fan...I'm unsure how high I can safely go with this cooling so feel free to advise)
XFX GeForce 9600GT
1 x WD Velociraptor 300GB Hard Drive
1 x WD Raptor 150GB Hard Drive
SB Audigy 2 Sound Card
Gigabyte EP35-DS3L motherboard
Zalman CPU Cooler and 4 Case fans
4 GB Corsair PC6400 XMS2 memory
DVD Writer and CD Writer
I'm currently running a Corsair 550W power supply and am afraid I might neede like a 600 or 650W? Am I safe and have a little overhead?

I run an E 8400 at 4.0 with my Zalman 9500 ( 33c idle / 52c load )
You don't need another psu.