I'm running two 24 inch 1920x1200, two 20 inch 1600x1200, one 17 inch 1280x1024, and one 15 inch 1024 x 768 monitors. I'd love to upgrade that to eliminate the 15 and 17 inch monitors and replace them with a pair of 30 inch ones, but two 30 inch monitors on their own wouldn't really be sufficient I think. But the cost makes this impossible at the current time.

As for the i7, price is again too much. Looking at a couple of suppliers, the processor alone would be as much as a decent core2duo and motherboard, possibly including the ram frown I tend to stay a couple of generations behind the curve on non-gaming machines like this, it weeds out the expensive ones and those of dubious reliability. This current machine was a little old-fashioned even when I bought it, but it's been rock-solid the whole time I've had it. It's just a little underpowered.

pca
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Experience is what you get just after it would have helped...