I am thinking of making the smallest gaming rig possible and hiding it somewhere. I admit, I miss my alienware M17x with two 5870 video cards sometimes.
Playing Total War games on release with Ultra settings usually takes a custom built gaming PC.I know Empire will drop frames on Ultra settings with our custom built gaming PC with a over-clocked NV690 graphics card (3GB VRAM)!
Bottom line Total War games on Ultra historically max out the next generation of machines never mind the current generation on releaseThe good thing is they stay looking awesome for years after release.
If you want to run on Ultra settings high resolution etc then a gaming PC with a ~$1000 graphics card is the way to go
Edwin