I am currently building a Phenom II system
I have already bought a GPU (XFX HD Radeon 4870 1gb) , a case (CM 690) and Seagate Barracuda 500gb
I still need to decide on a motherboard, DVD burner, RAM and PSU. I currently don't want to Crossfire but I don't know about the future.
For the motherboard, I don't know if i should go with DDR2 or DDR3.
For PSU, I don't know don't know how much would be enough for a 4870 1 gb and phenom II
My budget for the system is 1k but the everything is around 1.5k
I live in Canada so the prices are a little higher
Go for DDR3, it's going to be cheaper and easier to upgrade later, I recommend 4GB for now. (About 100$ in Canada)
For a PSU you'd be fine if you have a 500W one, but if you want to CrossFire at a later time, go for a 650W to be sure, I'd recommend Corsair or Antec Earthwatts. (Antec's 650W Earthwatts is about 110$)
As for the board, I usually build with ASUS boards, for them, M4A78T-E and M4A79T Deluxe, both are good, just check with your budget which one fits your needs best.
As for the chip himself, I guess you will be taking the BE one? Don't forget your fan on it if you do.
As for DVD, I usually don't bother much about, all I want to do is read and burn occasionally, although I've realized that Pioneer's are very noisy compared to LG's. So personally I stick with LG. And that's about 30$.
DDR3 1333 is maybe 10 bucks more than DDR2 1066. I think AM3 boards make sense now, and all the popular Intel boards such as the UD3P come in a DDR3 flavor..... You factor in that DDR2 prices have risen in the last two weeks while DDR3 has dropped, and where does that leave us?
With AMD I would wait at least until they have the DDR3 errata fixed. Right now running in dual channel is unreliable. Besides DDR3 doesn't give much of a real world performance boost (any that would be readily apparent to the end user that is).
AMD's latest Phenom II processors may experience unreliable operation when running more than one stick of DDR3-1333 or DDR2-1066 memory on a channel using standard JDEC voltages. AMD has instructed motherboard manufacturers to have the BIOS downclock DDR3-1333 to DDR3-1066 and DDR2-1066 to DDR2-800 to ensure stability.