New to building

I wan to build a computer. I already have a Processor, Memory,OS,Keyboard,mouse & monitor.I just need to know what type of motherboard I should get and power supply.

I have a CORE DUO 2 2.4ghz(for a 775 motheboard)
4 1gig DDR2 PC5300 Memory

Any answers will be greatly appriciated.
Thanks to all in advanced.

Also you can use anyweb site. I will search the web for the cheapest prices anyways,just need like a model# pics anything

 

I also have a SATA 320gig Hard Drive.

 

I assume that the CPU is an E6600? What case do you have?
Do you already have a graphics card? (You will need one)
Do you already have a CD/DVD drive? (You should have one)

 

I dont have a case or a card or cd/dvd.

 

Then you will need to buy those too
What is your budget for all this?