As to your first question, I'd be torn between putting my opponent on a bluff vs. AQ vs. a set. It would really depend on the opponent, but if I had no prior info on the guy I'd probably call if I was on Party Poker. The problem here is the tiny pre-flop raise that was made, it's not enough to even fold out 33 or 88 so a set is highly possible. It's an awful risky bluff, if it is a bluff. I'm thinking AQ or a set...I say I'd probably call, but I'm not sure that that makes me a good player . Folding might be the smart move here. Some have mentioned that it makes sense to slow play the set in this situation, making the set less likely. A good point, but I often like to lead at the pot with a set...make it LOOK like I'm swinging at it and trying to buy it. That's just me. I try to be consistant, leading at the pot often when I do and don't have a hand. If I slowplay every monster, then my bets to steal pots become less effective.

I actually believe in raising the exact same amount pre-flop in a ring game anytime I raise...and like Fnord it's usually something like 5xBB. If you're going to raise, raise with authority like you've got something good. Baby raises just scream halfway hands like KQ/AJ etc. Raise it big, and you set yourself up to steal the pot if the flop comes with rags and you've got nothing but two overcards...you represented a strong hand before the flop, they will probably respect a raise if they don't have a strong overpair.

If you're going to raise before the flop, do it with authority or don't do it at all. Raise the same amount every time and you deny your opponent info. If you raise different amounts for ATs vs. AA, opponents WILL get a read on you.