Those aren't as bad as i thought by your comments. I think the main issue is your video card, i know you just got it and all, but i think you shouldn't worry about a processor or RAM unless u just want them.
Thing to keep in mind is that while my screenshots look ok (1280 x 1024, 8xQ AA, 16x ASF triliniar, >60 FPS), i'm also running the game on a multi-thousand dollar rig. I guess what i'm saying is don't spend that kind of money just to play legacy, at least not until it's patched and we get better controls.
What i did to improve the graphics was posted on the legacy forum. I just changed the LOD's so that the highest quality LOD doesn't vanish at a few Mm away. And the main thing is tone down the default brightness! Too much ambient light is a killer for space graphics.
Here are my rig's specs in case you're interested:
Core 2 Duo E6700 @ 3.2GHz @ 1280MHz FSB
ASUS P5W DH Deluxe Motherboard
4Gb Corsair XMS2 DDR2-875 Ram
512Mb eVGA nVidia GeForce 7900GTX
160Gb 10,000rpm WD Raptor system drive
1.5Tb (5 drives) storage
Dual 19" Samsung LCD Monitors
And here's a uncompressed version of the first shot from above, the jpg compression was killer on those shots. (i didn't put it in image code cause i'm hosting it off site b/c it's big, and i don't want people to eat my bandwidth.
Legacy NX01 Screenshot 1