I'm not really. I've tried one of the Warhammer 40k series (Dawn of War II), but wasn't too enthralled with it. The writing just seemed dull, even for an RTS. I didn't care about the world, the characters, or the story. The gameplay had a couple interesting twists, but still wasn't enough to keep me interested.

Besides, if Starcraft: Ghost, and Command and Conquer: Renegade teach us anything, it's not to trust shooter spinoffs from RTS games.