Atm:
Core i5-750 @ 3.6 GHz
2*2 GB @ 2040 MHz
ATi 5850 (6950 6970 soon :celebrate: )
Before Skyrim I'm upping CPU to either Bulldozer or Sandy Bridge, whichever has the best bang for the buck & temperature OC-wise, and doubling my ram and getting an ssd. Should be enough for mediocre settings.
LOL we have basically the same system <3
Core i5 750 @ 3.5GHz
4GB OCZ RAM
Gigabyte ATi Radeon HD 5850 OC Edition
If I were you I would hold off that new GPU. A 5850 is still more than sufficient and I think it would be cooler to wait for AMD's new Southern Islands architecture in the 7000 series.
Edit: Get an SSD. I got a Corsair Force F60 over the holiday to use as a boot drive and for a couple of programs and the speed increase is very noticeable.