1) http://www.gamingw.net
2) Understanding it is really easy, making something extremely nice with it is slightly more difficult, but you'll be fine in a few days after starting with it.
3) Gamingw might have a few useful ones, but you can always ask me if you need some help.

"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram