Quick Ram Advice

[sutom]

Hi I just wanted some advice about a ram upgrade I'm planning. Right now I have this system:

DFI LanParty UT NF4 Ultra-D (Socket 939) PCI-Express Motherboard
AMD A64 3200+
Powercolor Ati x800 XL (256mb)
GeIL 1GB (2x512MB) PC3200 Value Dual Channel Kit CAS2.5

So I want to swap the GeIL 1GB ram out for a 2GB dual channel kit. I was looking at possibly the same GeIL dual channel but 2GB, or Corsair 2GB DDR XMS3200C2PT TwinX (2x1GB) CAS2 (MY-079-CS). What would be the best choice of those, or is there a better choice by another make?

I haven't overclocked anything so far, so would prefer something that ram fine from the off. I also noticed in this thread:
http://forums.overclockers.co.uk/showthread.php?t=17582861
that there are issues with Corsair memory and DFI boards. Is this the case with all Corsair ram and DFI boards? Should I avoid Corsair and go with something else?

Obviously cheaper is better, the Corsair £150 range is probably my limit
Thanks for any help.

 

[sutom]

Thanks, I see the ZX are quite a good price too!

This is probably obvious but: Would I need to flash my BIOS before installing that ram? It's been a while since I built my PC and I'm not exactly an expert at this, so I've forgotten what I did last time