Thanks for having faith in me :-) Although without my recently discovered wisdom in focus I'd be working on my second 10 submission shots now...
And Dave, I have to look into that book you guys wrote. Sounds useful!
Go shoot stuff that you LOVE - like it was already said - be yourself. It takes a while to get the confidence on what to submit, but you won't figure it out unless you give it a try. Don't over think it - none of us can tell what sells for sure - all we can do is shoot and submit :)