nuff ram?

I was lucky enough to get a 245BW monitor yesterday.  I have made most of my configs with the expectation of using my soon to be purchase on a 22" monitor.  My question is will the 8800gt 512 be a good performing card/ enuff vram for my 24" monitor using 2gig 800mhz ram, 2.4 quad or should I step up to 2gig 1066 mhz ram? and maybe the 768 acs3 card? 

Thanks skyR for the reply.  I'm not very techincal, and the reason I'm asking is that I'm in the process of specing 2 computer systems, which at first I thought one would be a dual core processor and one a quad, but both might end up being quad.

So concretely, if I chose to go with the Q6600 processor, which runs at a FSB of 1066, I think you're sort of saying that going with the 2 gig 1066 ram option is over kill.  What would be the optimal ram speed ? 

If I understand your reply, the FSB on this processor is actually running each processor component at roughly 267.  So the 667 dual channel  RAM speed would break down to 333, and be more than enough ? 

Thanks commast.  I'm still a little fuzzy on all this.

I think I'll stop in and let the folks at DSO explain it to me with pictures and arrows and circles and such.  Then I'll decide what exactly to order.  I'm not at this point intending to OC the machines, nor upgrade them. I'm assuming that the configuration I choose will sufficiently attack any of the applications I will be using.  Mostly large data sets, graphics and CAD.  I know, I'm probably the only non-gamer here. But a reliable, fast, stable machine is what I need for work.  It puts a roof over my head, food on the table, etc.