Puffer Fish:Having had the chance to dive with a fair number of people on this board, I have to say, what you see, is what you get.
The good people are just that, good people.
There is a tremendous network of people here, that more than just the internet, actually know each other, so spend some time finding out who knows who and what they are really like.
Enjoy your dive and please consider the SOCAL get together of SB members this fall - there will be people from all over the US and Canada there (and maybe, if we are lucky, other countries).
Regarding gear rental, you need to get to know some of these people better, there are lots with extra gear you could use.
And sometimes, diving with new divers is fun. You get to be human and spend more time being social and less being technical.
I've gone on two diving vacations with SB member I did not know, and am glad they would have me.
Now go get wet.
Good advice!