Gauge info (please read me!, I will save you many hours of heart break)

Gauge adjustment calculator in Excel from Confusion in Glass and String blog

Got Gauge? this site tell you all about it, how to get it, and how important it is
Thinking beyond the pattern from Knitty and Jenna Wilson, a great in depth article on gauge and how it alters your finished item.
Drape, and choosing yarns, from KD Sandi and Knitting Daily

Knitting that Sweater in your Yarn from, gives you some conversion info, if you can't get that perfect gauge.

The knitting Gauge converter by, free and great