Hey Y'all, don't forget that the internet is one of the best resources you have for finding some really good tutorials. There are some great step-by-step resources like Dan Santos' website, and others that cover a lot of ground, like James Gurney's "Gurney Journey."
If you want live action, go to YouTube and enter whatever it is you are looking for plus "demo." You'll turn up some great stuff, even at 2 am! So, go exploring. You, and your work, will be better for it!