So, there were a few changes and addons in my cheapo-box,
#1 PowerSpec v100 with a 3.33Ghz Celeron D$299.00
#2 Slapped in 2Gb of Corsair pc5300 $84.99
#3 Popped inan eGeForce 7600GT 256mb pci-e card $89.99
#4 Tossed the 300W supply in favor of a 600W Ultra $79.99
#5 Added a 74Gb WD Raptor $149.99
So $704.95 and it runs COD2 maxed out in SP with no lag, ARMA is ok with all set to low and visibility at 1000'ish but I have yet to start tweaking and such so we'll see how it goes after I Rivatune and so forth. I'll keep ya' updated.
(yea, I know theres alot more titles out there that would put a serious hurting on this box, but the MOBO will accept a core2 duo and theres definatly room for improvement on the vid card, maxed out the ram thou

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Oh yea', All from Micro-center, 1 stop shopping.