AJs hand, tricky tricky limper.

[gobboboy]

NL Texas Hold'em Trny:14921183 Level:10 Blinds (300/600) - Wednesday, August 17, 17:08:46 EDT 2005
Table Multi-Table R+A(427097) Table #13 (Real Money)
Seat 8 is the button
Total number of players : 10
Seat 1: Villain ( $9220 )
Seat 2: tomcatl ( $26569 )
Seat 3: essexman43 ( $16715 )
Seat 5: newcreature ( $21115 )
Seat 6: NSm0405 ( $18693 )
Seat 7: Hero ( $32010 )
Seat 8: BigSlickMLS ( $14532 )
Seat 10: frutsen ( $14172 )
Seat 4: Logina83 ( $9445 )
Seat 9: ALLINUZ ( $14508 )
Trny:14921183 Level:10
Blinds (300/600)
** Dealing down cards **
Dealt to Hero [ Ad Jd ]
Villain calls [600].
tomcatl folds.
essexman43 folds.
Logina83 folds.
newcreature folds.
NSm0405 folds.
Hero raises [2500].
BigSlickMLS folds.
ALLINUZ folds.
frutsen folds.
Villain is all-In [8620]
Hero...?

Blinds are 300/600, my stack is over 2x the average and have some chips to gamble, but I don't have reads on the villain and I am wondering what to do. (I have problems laying down hands against big raises after I have committed chips... something I am working on.)