For character rigs, you could try using a pre-made rig like one of these:
2008 Rig
TSM2 (also easy to setup quadrupeds, etc)
Squetch Rig (Squetchy Sam)...more links in my signature.
There is also the 2001 Rig (you'll have to search for it) and the Saucy Rig (I think the link is currently down).
There are a lot of tutorials covering most of what you requested in the forums...if something isn't covered or you can't find the answer, ask a question.
I'm looking forward to seeing your project!