I just saw Appaloosa today as well, I thought it kicked a whole hell of alot of ass.
I myself am I huge western fan.
You should also check out Tombstone and Wyatt Earp if you haven't already seen them. They're pretty much about the same thing but Wyatt Earp explores more of his life then just Earp's time in Tombstone. I'd say Wyatt Earp is more historically accurate while Tombstone is more entertaining.