Dealer's choice means the dealer picks the game. Frequently, there are wild cards or other strange rules. Stuff like "No Limit Follow the Queen" where there can be 8 wild cards and half of them might change before the hand is over.
I get no respect. When I move all-in, people from other tables call.
re: Poker & Private small cash games - What do you think?
With friends, go for it. I haven't yet ventured to playing with a bunch of people I don't know, but if I were to know a reg that plays with them and can vouch for them, I would give it a try. But you can end up playing a big mix of games, especially with wild cards. Make sure you're playing at limits you're comfortable playing where the games may not be your strongest.