I have a few questions, though:
1) Will doing the talk at a small conference/meetups disqualify me or hurt my chances to get accepted at a bigger talk?
My goal is to do talks at the 'big' conferences but, if I have a particularly good topic to talk about, I wouldn't want to "waste" it at a smaller venue.
2) Is it okay to submit multiple talks per conference?
3) Is earlier always better for submission, or does the submission time (early in the CFP period vs late) matter at all?
4) How 'complete' is your talk when you submit? Is it a vague outline that you don't start working on until accepted, or is it mostly ready-to-go when you submit?
Any other thoughts and advice for a beginning speaker greatly appreciated.