Isolate here?

I don't like putting a lot of my chips at risk early on but should I have pushed to isolate here?

PokerStars Game #3013818547: Tournament #14885908, Hold'em No Limit - Level II (15/30) - 2005/11/09 - 14:27:52 (ET)
Table '14885908 16' Seat #7 is the button
Seat 1: Viper_x (125 in chips)
Seat 3: ignored (5195 in chips)
Seat 4: KJ-Angel (1305 in chips)
Seat 5: RainMan03 (2975 in chips)
Seat 6: collegeguy23 (1700 in chips)
Seat 7: thadragon2 (1525 in chips)
Seat 8: whaldane (915 in chips)
Seat 9: efcman (3595 in chips)
whaldane: posts small blind 15
efcman: posts big blind 30
*** HOLE CARDS ***
Dealt to efcman [Qd Ac]
Viper_x: folds
ignored: folds
KJ-Angel: folds
RainMan03: raises 90 to 120
collegeguy23: folds
thadragon2: calls 120
whaldane: raises 795 to 915 and is all-in
efcman: folds
RainMan03: calls 795
thadragon2: folds

You've got a raise, a call, and a big reraise in front - the fold was good. Even with AK a fold is a good, solid play there (although with your chip stack a push isn't so bad either if you are willing to gambool).