Magician:
http://tronixstuff.wordpress.com/
and
Arduino Tutorial - Learn electronics and microcontrollers using Arduino!
Those are great sites, and of course closer to home here on the Arduino site there are also tutorials.
Welcome and good luck! Start small, build up a bit of experience and get some "building blocks" in your mind, then you'll be able to bolt those together into ever-bigger projects.
Remember Google is your friend.... I found a lot of info about the SoftPot that way, for example this on the manufacturer's site.