at which resolution?
If you are talking about some crazy multi monitor setup or a large 2560 x 1600 monitor, it might be significantly cheaper to wait a few more months.
If you are talking about 1920x1200 or lower, of course you can get something better and cheaper later, but a decent custom desktop built today should have no problem with Skyrim maxed + hi res (4096x4096) texture mods
On a laptop that is more than a year old and with a second-tier laptop video card (AMD 5830M), DA2 is running just fine at 1920x1080, very high setting with DX11, 4x AA, 4x AF, SSAO, high res texture pack and high quality motion blur enabled. One scene where there was a lot of fire and smoke was a bit slow but still playable. I could be wrong, but I doubt Skyrim will be that much more demanding.