New CPU, I Think?

I am in need of a new CPU, I am thinking, but I am not sure which one, and if that is all I need.

My system:

HD 4850 Golden Sample
GA-P31-DS3L
E6550 (2.33Ghz)
2Gb 667 Mhz

I am specifically gearing up for ArmA 2, especially at the further draw distances, and so that I don't bottleneck my GPU. I also like to FRAPS games.

I have about $200 AUD, and I can go a little bit over, if necessary.

I am thinking, maybe, the E7500, at around $200, or the Q8200, at around $270. Overclocking is something I would like to pursue, so if that could be taken into account, when looking at my specs, that'd be helpful. i guess it comes back to the dual vs quad debate.

Thanks in advance,
HateDread.

are you sure you can keep the mb?

Sure I can?

'Supports Intel® Core™ 2 multi-core and 45nm processors to FSB 1600 (O.C.) "

Info says it supports 45nm quads, too.

I realise I am talking about 4 CPU's in the first post: E8400, E7500, Q8200, Q8400.

I am leaning towards the quads, and I noticed that the Q8400, E8400, and Q8200, are all in similar price ranges, really.

But I was wondering your total opinion, and on other components? I would like to overclock, if possible.

Thanks.

Only a few pentium 4's and i7's have hyper threading nothing else ever did so that isnt important. Virtualisation is important for running xp mode in windows 7.