Getting the implied odds for a set

[UncleRemus]

Been at the table for about 25-30 hands. This was the first raise I've seen from this guy. On the flip side, I have a VERY aggressive post flop image. I was really hoping he had AA/KK and would go over the top of my pot sized bet. Was this a terrible idea? What might have been a better idea to play this one? In hindsight, perhaps I should have waited for the turn to make a move? Comments?

Party Poker No-Limit Hold'em, $0.50 BB (6 max, 5 handed)

saw flop|<font color="C00000">saw showdown</font>

MP ($22.50)
Button ($65.82)
Hero ($66.05)
BB ($84.34)
UTG ($25)

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/spade.gif[/img].
UTG calls $0, <font color="666666">1 fold</font>, Button raises to $2, Hero calls $2, <font color="666666">1 fold</font>,50,25, UTG folds.

Flop: ($5.50) 9[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="blue">(2 players)</font>
Hero bets $5, Button folds.

Final Pot: $10.50
<font color="green">Main Pot: $5.50, won by Hero.</font>
<font color="green">Pot 2: $5, returned to Hero.</font>

Results in white below: <font color="white">
No showdown. Hero wins $10.50. </font>