I've got a few of the Deadlands figs. To be quite honest, they're a very mixed bag. Some are very nice, others are not all that great, and the "Steampunk" aspect of a few is somewhat questionable if you're a purist. (I have their armored steam tank, and whilst a very serviceable model it looks a lot like somebody converted a Panzer III or IV.)
If you're looking for "Weird Wild West" you might want to have a look at Brigade Games, which has some nice ACW and Wild West themed Victorian Sci-Fi/Steampunk stuff. I'm not a huge fan of VSF ACW (more of a purist and prefer my games in a slightly different setting) but the figs they do are nice.
As far as Deadlands the RPG, still going strong. Problem is that they have switched to the Savage Worlds system, which not everyone is a huge fan of. I think it's fine, but very reliant on miniatures, which is problematic for roleplaying purists. Personally, I prefer the older version (stats generated with a poker deck, etc.) To each his/her own. The Deadlands Miniatures game, "The Great Rail Wars" has been out of print for some time, but you can still get it. The main problem with the Miniatures game, I am told, is that it was never sufficiently supported, and that certain miniatures were promised and never released, etc. Unfortunately, I can't comment on this from first hand experience - I only found out about The Great Rail Wars after it had stopped being printed, as it never hit big in the areas I was gaming in.
-Doc