PP 22- AK on the bubble in level 3

***** Hand History for Game 3134554104 *****
50/100 Tourney Texas Hold'em Game Table (NL) (Tournament 17932348) - Fri Dec 02 22:44:53 EST 2005
Table Table 66845 (Real Money) -- Seat 2 is the button
Total number of players : 4
Seat 1: HERO (710)
Seat 2: prince_akeem (4240)
Seat 3: Gmex166 (1915)
Seat 10: VILLIAN (1135)
Gmex166 posts small blind (25)
jbar70 posts big blind (50)
** Dealing down cards **
Dealt to HERO [ Ad, Kh ]
HERO raises (150) to 150
prince_akeem folds.
Gmex166 folds.
jbar70 calls (100)
** Dealing Flop ** : [ 5d, Tc, Qd ]
VILLIAN checks.
HERO ???

Obviously a c-bet is best here but i dont want to go all in and over bet the pot because i fill like i am going to be called by a much higher range of hands that i am behind that includes lots of pocket pairs any queen and prolly most tens. So my question is how much do you bet into the pot here if of course you do bet. Thanks for the advice.