Longtime lurker, first time poster... Please be kind!

NL200 @ Party

Villian: Decent player. He has done anything to shock me. Only been at the table for about 30 minutes but I had only seen him play from the blinds, button and CO. Him raising from UTG+1 made me think high pair, AK or AQs.

UTG+1: $220 (Villian)
UTG+2: $350
SB: $175
BB: $150 (Hero)

Villian opens for $6
UTG2 calls
SB calls
Hero calls w/A [img]/images/graemlins/club.gif[/img]T [img]/images/graemlins/spade.gif[/img]

Flop: 4 [img]/images/graemlins/club.gif[/img]2 [img]/images/graemlins/club.gif[/img]9 [img]/images/graemlins/club.gif[/img] (Pot=$24)
SB checks, Hero checks, Villian bets $25, 2 folds, Hero pushes all-in for $142.

I see it as a push or fold situation. Villian bet pot so I put him on an overpair or a set of 9's. He likes his hand and doesn't want to give anyone the odds to draw.

So...

1) Good push? I hate calling here because if my flush does come then I won't get paid for hitting it. With my push, it pretty much tells him that I at least have the A [img]/images/graemlins/club.gif[/img] or possibly a made flush / low set.

2) Do you call in his situation with an overpair or a set?