Yes, I recently received an ATI Radion X1300 XGE 512MB Directx 9.0 graphics card! My originally crappy computer was completely transformed from this upgrade. Previously, I couldn't even use the pixel shaders in Morrowind, but now I'm running games like Battlefield 2 with 50 bots, near lagless (would be completely lagless, but my CPU isn't so great).
I bought Company of Heroes while looking for a new gaming chair. The game is excellent; until this game, I was never impressed with 3D RTS games, as I preferred the large-scale engagements of Age of Empires only available through the smooth running of its 2D goodness. But, CoH changed this. The Havok physics complement it in a way I would have never imagined; tanks blasting through walls, soldiers being shredded my MG42s and 30-cals, artillery blowing people to bits. The vehicle models easily bypass those of Call of Duty 2 and 3; the tanks look mind-blowingly realistic.
However, the campaign was fairly short and very few multiplayer maps were included. There are already many mods available for it; I particularly enjoy the KMOD, which increases the lethality of the game and makes it much more realistic. There are also many great maps available for download.
So, I've been using my PC much more than my 360, lately, as it seems the 360 hasn't been all that fun lately. Gears' multiplayer sucks and the singleplayer is all played out. Rainbow Six has great multiplayer but there are a lot of jerks ruining it. Hopefully, Crackdown and the upcoming Halo 3 beta will bring some more fun times to Xbox Live.