QQ, A on the flop

[Dirtsqrl77]

Most concerned about the opponent Octavian_C. He is a succesful Pokerroom tourney player. i.e. - Final table $1000 Grand Tourney III, and 2004 WSOP entry.
He is a solid player, and rarely bluffs(I have never seen him bluff, but I am sure it happens occasionaly).
Below is the hand in question:

No-limit Texas Hold'em $50+$4 (real money), #1,156,051,297
50+4 European Daily Multi Table Tournament, 10 Aug 2005 4:35 PM ET
Seat 1: Fesser ($513 in chips)
Seat 2: Octavian_C ($11,710 in chips)
Seat 3: bubba69629 ($6,700 in chips)
Seat 4: HERO ($11,285 in chips)
Seat 5: QueenBeeXXX1 ($4,170 in chips)
Seat 6: JoeytheFish ($4,295 in chips)
Seat 7: Geffman ($5,170 in chips)
Seat 8: peanut337 ($1,792 in chips)
Seat 9: QUADZILLA__1 ($2,101 in chips)
Seat 10: sour apple ($2,470 in chips)
ANTES/BLINDS
Fesser posts blind ($100), Octavian_C posts blind ($200).

PRE-FLOP
bubba69629 folds, HERO(QS,QD) bets $650, QueenBeeXXX1 folds, JoeytheFish folds, Geffman folds, peanut337 folds, QUADZILLA__1 folds, sour apple folds, Fesser calls $413 and is all-in, Octavian_C calls $450.

FLOP [board cards AC,5C,2H ]
Octavian_C bets $500, Hero....

His weak bet tells me he probably has an A, but most likely something like A- J,10,x suited. I have a equal stack, and I have only shown down monster hands. Is this an opportunity to play back at the raiser and claim AK-Q??? Or is this time to let go????

I find a leak in my game is laying down JJ, QQ when there i light action, so this is why I need advice here.