Fancy Play Syndrome?

[Muisyle]

Party Poker No-Limit Hold'em, $ Hero (6 max, 5 handed) converter

Hero ($96.75)
UTG ($52.4)
MP ($50)
Button ($8)
SB ($86.55)

Preflop: Hero is BB with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img]. MP posts a blind of $0.5. SB posts a blind of $0.25.
UTG calls $0.50, MP (poster) checks, <font color="#666666">1 fold</font>, SB (poster) completes, <font color="#CC3333">Hero raises to $3.5</font>, UTG calls $3.50, MP folds, SB folds.

Flop: ($9) 7[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $5</font>, <font color="#CC3333">UTG raises to $25</font>, Hero calls $20.

Turn: ($59) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Hero calls $23.40.

River: ($82.40) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $82.40

My read on this guy was that he had jack [censored] on the flop. A pair at best. I felt if I put him all in he might have folded, where if I just called there is no way he was getting away from any hand, and he would just put all the money in the pot for me.

Should I just put him all in on the flop?