http://battleforge.com/
So BardicKnowledge and I have decided we're going to start playing Battleforge. It's a fun online TCG/RTS hybrid game that features online PvE and PvP scenarios.
It was a retail game when it launched but it didn't do too well in retail, so EA decided to make it a free-to-play microtransaction based game; however, you don't really need to buy any "boosters" to go through the campaigns. There's a lot of content in this game: single player maps, multiplayer co-op maps, vs. maps, tons of cards/units, etc.
The art direction and graphics are fantastic, and the music is really good orchestra stuff. It's also not a really difficult game to get into, so it's good for guys like me who are pretty terrible at RTS games (i.e. there's not a lot of resource management; more focus on battle tactics), and difficulty is adjustable as you go through the game.
Anyway if anyone wants to play a little I'm always up for some co-op PvE; just hit me up on IRC or something in the evening.