Welcome as well. If you know all the people in the league, a wager is always fun, and a great way to keep it interesting. Make sure everyone knows the scoring cats before the draft so no ones whines about it. Also, a little fun smack talk never hurt anyone.
But yes, the best thing to do is read here. Check out the commish's forum. Tons of great info.
Good luck with the league.
Also, rotoworld has some great info IDP denfensive depth charts to check out.