Thanks for the comments guys, I'll stick to the straight forward plays as Raptor suggests. Here's what happened.
Party Poker No-Limit Hold'em Tourney, Big Blind is t150 (5 handed)
converter
saw flop|
<font color="#C00000">saw showdown</font>
BB (t385)
UTG (t2940)
MP (t280)
<font color="#C00000">Hero (t1698)</font>
<font color="#C00000">SB (t2697)</font>
Preflop: Hero is Button with A[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">
2 folds</font>, Hero calls t150, <font color="#CC3333">SB raises to t600</font>, <font color="#666666">
1 fold</font>, <font color="#CC3333">Hero raises to t1698 [all-n]</font>, SB calls t1098.
Flop: (t3456) 6[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Turn: (t3456) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
River: (t3456) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Final Pot: t3456
Results:
Hero has Ah Kc (one pair, sevens).
SB has Jc As (one pair, sevens).
Outcome: Hero wins t3546.
I went on to use my big stack to get a massive chip lead before the bubble broke and took first, but this hand stuck in my head as being questionable.