Memory question DDR2 ...

Thinking of ugrading the memory in my computer ... the motherboard was made when DDR2 was just coming into the market and for ecomonomics I went with 2GB of DDR memory (Mobo can handle 4GB).

If however I upgrade to DDR2, it will only take 2GB.

If I ditch the DDR altogether I can stick 2GB of DDR2 in for £46.00 ... if I stay with DDR and stick an additional 2GB in it'll cost me £60. As I understand it there's virtually nowt performance wise in 4GB DDR v. 2GB DDR ... so I'm leaning towards the 2GB of DDR2 as, again, its the cheaper option ...

Any reason why I shouldn't do that and instead just go for the DDR up to 4GB?

 

Ten to two a bad pre-match time to post ... anyone help with the above? nt