Building new computer

I'm building a new computer. Advice on what to buy would be much appreciated.

CPU
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I want to go for a 939, while it's a little too expensive apparently AMD have kind of disowned 754? And does 754 need registered RAM? Do you think a 939 will be better? There's nothing lower than a 3500 on komplett and ebuyer (£200).

RAM
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I've heard of OCZ, are they good? I want to go for a gig. Is cl2 pc3200 ok?

MOTHERBOARD
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Really haven't decided on this yet.

CASE
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Not that important, but probably a Tsunami dream by thermaltake. Not sure about the door though.

CPU FAN
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Again, I know nothing about this really. I quite like the coolermaster stuff.

 

You might want to check out this thread...it was quite active this morning. http://forums.techguy.org/t274847.html Liz

 

I love that case but have never seen one in the flesh, but it is cool looking.

 

Actually the one *I* want is this one: Xaser V - Damier V5000A in black! It has MY name all over it for my next computer that we build. I fell in LOVE with these cases the first time I saw the site. And no, I haven't seen one for real but LORD, I want to. Liz