Well, The series of Warhammer is quite massive,
But here are some RTS games out and I need people to play with:
Dawn of War
Dawn of War Soulstorm
Dawn of War Winter assult
Dawn of War Dark Crusade
Dawn of War2
Dawn of War 2 Chaos Rising
Dawn of War 2 - new one TBA)
Non RTS-
SpaceMarine - FPS, Xbox, PS3, Computer, out this year
MMO
Dark Millinium - MMO , not out yet