You guys hit all the major steampunk games I know.
Fugde, Savage Worlds & Gaslight would be my top three to do that kind of gaming. I'd love to do a savage worlds/Indiana Jones table top game at Gencon. It would be a blast! Points in the movies, you ask:
1. Raiders, start with the snakes and finish when Jones (and gang) takes out the truck.
2. Last Crusade: The attack of the tank, obviously!
3. Temple of Doom: The antidote/daimonds mess...
As for Warmachine, I have way too much of that stuff for my (and my wife's) sanity. If I could only find someone who loves to paint, but is horrible at Math!
-Bren