Hi Blood Sweet and Beers.
Here in Australia, a fellow by the name of Jack Lange (who I bought my X30 from) has put together a 7hr video/DVD set called Jack Lange's Nugget Finding Secrets. I haven't seen it myself, but have heard from someone who has, that it's pretty good.
I don't know where you live; but also in Australia, a company called Coiltek (well known for their coils) in Maryborough, Victoria (in the Golden Triangle) Run regular courses for people like yourself, to teach you how to nugget hunt, and to learn what to look for. I'm sure there must be a few similar companies in the US.
Jacks web address is www.jacksgold.com
Jack has been around for quite a while and is a very experienced nugget hunter. I've always found him to be most helpful.
Good luck.
Mick Evans.
P.S. You might want to try and get onto some of the nugget hunting forums with this same question.