($22) How bad was this laydown?

[RobertC]

Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (8 handed) FTR converter on zerodivide.cx

Hero (t745)
Button (t1560)
SB (t1475)
BB (t620)
UTG (t955)
UTG+1 (t595)
MP1 (t1320)
MP2 (t730)

Preflop: Hero is CO with 8[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img].
[color=#666666]2 folds</font>, MP1 calls t30, [color=#666666]1 fold</font>, Hero calls t30, [color=#666666]1 fold</font>, SB completes, BB checks.

Flop: (t120) 7[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img] [color=#0000FF](4 players)</font>
[color=#CC3333]SB bets t100</font>, BB folds, MP1 calls t100, Hero calls t100.

Turn: (t420) A[img]/images/graemlins/club.gif[/img] [color=#0000FF](3 players)</font>
SB checks, MP1 checks, [color=#CC3333]Hero bets t100</font>, SB folds, [color=#CC3333]MP1 raises to t600</font>, Hero folds.

Final Pot: t1120

One of the biggest weaknesses in my game is that I concentrate too much on my own cards without thinking about the hand my opponent might have. Consequently I rarely fold a strong hand even when the betting suggests I'm beaten. Never before in my life have I folded a full house in Hold'em.

My thinking after the raise on the turn was that MP1 wouldn't have called the flop without some kind of hand. So he held a 7, ace, or pocket pair. I could see him calling the turn with a 7 or pocket pair, but not raising with them. So I concluded he must have an ace and I folded.

Of course now I think that if he had an ace why would he raise me all-in. He could make a minimum raise and I might bite. Or I might even reraise thinking the mini-raise was a bluff. I also think now that he might've gone all-in with a 7. This is what I call a panic all-in. Where the player has the nuts at one point, slowplays, no longer has the nuts, and then goes all-in hoping to take down the pot that was supposed to his in the first place.

Should I have checked on the turn? Will a hand that can't beat me call a turn bet? Perhaps better to check the turn and maybe induce a bet or a call from a weaker hand on the river. What do you think? Thanks.