Nick, FSX needs a strong CPU to run well. Did I already mention that it needs a strong CPU?  :P

So if you spend more on the GPU, you may gain some headroom for antialiasing and things, but the framerates at airports will still be low since the CPU limits that scenario. No doubt, your new system will be better than the old one though. However, if you spend more or reduce other things like the disk size, do so for getting a better CPU.

Ever thought about buying used hardware? You know, some gamer guy getting rid of his 6 months old rig for the new thingies. Maybe even some shops offer used stuff and if you see some with a nice i7 processor, it's yours.  ;)

Geez, btscott, now that's what I call a long link.  :o  ;D