Good luck!
In general keep your paints and layers thin, make sure you have plenty of water around for thinning and cleanup, and work with a pallet instead of directly out of the bottle of paint.
Make sure you wash your minis with some dishwashing soap (like dawn) and warm to hot water. Especially if they're plastic.
Have fun with it! It's a process and just take it easy and relax with it. If you're hunched over and frustrated and cramping, its time for a break.
If you have any specific questions on stuff feel free to ask. Or as Phil says Google and youtube are your friends.
