Party 20/40 weak pair Aces vs LAG's turn checkraise

[Benjamin]

Opponent plays pretty well postflop but is very LAG at 51/23 preflop and very aggressive postflop.
Party Poker 20/40 (8 handed)

Preflop: Hero is BB with 5[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
1 fold, Moderate LAG raises, 4 folds, Major LAG calls from SB, Hero calls. ... Routine call, am I correct?

Flop: 7[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
Major LAG checks, Hero checks, Moderate LAG bets, Major LAG calls, Hero raises, Moderate LAG folds, Major LAG calls. ... Checkraise reasonable? Other line preferred?

Turn: Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Major LAG checks, Hero bets, Major LAG raises ... ??? I routinely call down from here, but I'm wondering if a fold is a reasonable option? Or call turn/fold river if nothing comes to give me at minimum a shot at a split vs a higher kicker?

Any thoughts appreciated.

Benjamin