320W good for 8800GT?

Hey guys, I'm planning on getting an 8800GT when it goes in stock at my local store, later this week. I was thinking, is my power supply powerful enough to juice my 8800GT. Right now I have a 320 W power supply, thats running 3 Hard Drives (one is a Raptor), a 920 D processor, 6600GT and 2Gig OCZ 800mhz, the moBo, a DVD drive, and three fans (including the CPU fan).

Also, my power supply has a 12Vwith 18A rail if that helps, and also, what does the 8800GT get its power from the PCI E like my 6600GT or does it need an aditional power connector, and if so which one. Additionally, please don't give any biased answers, just wether it'll work or not based on your experiences. Also, if it helps, I also want to replace the CPU to an e6000 later on.

Thanks in advance for all that help!

I saw this chart on hothardware.com, and GpuReview.com shows, "Max Power Draw: 105W"

I wouldn't risk it with three hard drives (one of which is a Raptor) and a Pentium D processor. Not to mention the fact that you'll need a 6-pin PCI-e connector, which your power supply might not have.RayvinAzn

Yeah, your right. But how does a 6 pin PCI-e connector look like?

http://shop.tsukumo.co.jp/img/tsukumo/050215b06.jpg