Help with an upgrade

[artus]

Hi all just wondering if I could ask for some advise im on a tight budget no more that £400 and thinking of picking up the OVERCLOCKED* AMD Phenom II X3 Tri Core bundle from ocUK

http://www.overclockers.co.uk/showproduct.php?prodid=FS-002-OB&groupid=701&catid=339&subcat=

and was thinking of getting another 4gb memory to go with it what I want to know is

a) is it worth picking up the extra 4gb

b) if I do pick up the extra 4gb should I not buy the bundle as I know the extra memory will affect the Oc and just pick up the components separatly.

Thanks

 

[artus]

Thanks for the response I should apologise and say the £400 was just for the motherboard, processor, ram and cooling the other bits are all ready taken care of I already have the following

ATI 4890 GFX 1gb
coolermaster HAF 932 case
coolermaster real power 620 power supply

HDD's 2x 400gb WD'S will use my existing ones as they are only a couple of months old