Did I raise enough with AA?

#Game No : 2537712427
***** Hand History for Game 2537712427 *****
NL Texas Hold'em Trny:14850229 Level:8 Blinds (150/300) - Monday, August 15, 01:00:12 EDT 2005
Table Multi-Table(424806) Table #17 (Real Money)
Seat 9 is the button
Total number of players : 9
Seat 1: SquareJaw ( $3596 )
Seat 3: Chrisman886 ( $3025 )
Seat 5: srdrgz11 ( $1000 )
Seat 8: MTice ( $7906 )
Seat 7: Clydeanie ( $810 )
Seat 9: srv57 ( $2121 )
Seat 2: Hotbites ( $11017 )
Seat 10: jlwass99 ( $735 )
Seat 6: Irish_Samuel ( $4440 )
Trny:14850229 Level:8
Blinds (150/300)
** Dealing down cards **
Dealt to Chrisman886 [ Ad As ]
Hotbites folds.
Chrisman886 raises [900].
srdrgz11 folds.
Irish_Samuel folds.
Clydeanie folds.
MTice folds.
srv57 folds.
jlwass99 folds.
SquareJaw calls [600].
** Dealing Flop ** [ 7s, 7h, Kc ]
SquareJaw checks.
Chrisman886 bets [975].
SquareJaw raises [1950].
Chrisman886 is all-In [1150]
SquareJaw calls [175].
** Dealing Turn ** [ Kh ]
** Dealing River ** [ 7c ]
SquareJaw shows [ Kd, 8d ] a full house, Kings full of sevens.
Chrisman886 shows [ Ad, As ] a full house, Sevens full of aces.
SquareJaw wins 6200 chips from the main pot with a full house, Kings full of sevens.
Player Chrisman886 finished in 240 place
ouch
Chrisman886 has left the table.


He called pre-flop with K8s I think because he got over 2:1 pot-odds since I raised to 3x BB. Should I be raising more, like 4x BB, or betting more than just a standard continuation bet (from Harrington's book) after the flop? Thanks in advance, I don't really ask questions I just lurk and read other people's stuff normally, you guys are a real help.

-Chrisman886