looking to upgrade, need advice please

[Quango-uk]

I just got an Ati X1900XT but I dont really see any improvement im my gaming .

At the moment I have 2gig of ddr400 , AMD 64 3500 , Asrock 939 dual mobo, X-fi sound card , 20 inch lcd dell capable of doing 1600x1200, Winxp pro

Do i need to upgrade my cpu, mobo etc , if I got a dual core cpu, should or do I need to install winxp 64 bit , will my games run ok on that OS and I mainly play Everquest 2.

Not too worried about the cost , within reason

Any Thoughts ?

TIA

 

[Quango-uk]

no , dont really like doing that , plus I dont know what im doing

 

[Quango-uk]

x800 pro

im playing at 1204 x 1280 at the moment

 

[Quango-uk]

sorry I did mean 1280 x1024

I dont want overclock my stuff , too technical for me .

what im asking is , could my cpu amd 3500+ 64 bit causing a bottleneck ?

Would I see I difference if I was using winxp64 ?

Dont get me wrong it does play eq2 fine , I just thought i would be able to whack the settings up and not notice any lag in game when theres a lot of action on screen .