Armies Of Exigo looks to be one of the best

[spawn_syxx9 1]

Well I didn't hear about this game until I watched G4 gamer's channel.

http://www.ea.com/games

You should check it out. I didn't realize it was a RTS because the box does not even metnion that. But it seems that it runs off of the Warcraft 3 engine and really looks like it should be an awesome sleeper game ie GLadiators: Galaxy Games.