You know we're in for it when
you start posting for help.
That Aspire you linked is insanely cheap for the heavy specs it has. In my opinion, the chassis on the Aspires are cheap feeling and flimsy. I don't know how well you'll like that TruBrite glossy coating on the screen since you'll get something like 50% reflections. It also appears that the GeForce card still uses shared memory from your system, so performance probably won't be too far off from your FX5500.
Unless you suck it up and spend the dough or find a deal or coupon, this one laptop might look like it's the your best bet. :/ (I hate laptops >:U)
Jam it back in, in the dark.