a rivered flush situation
 

would it be a good idea to raise with this flush after his bet on the river? or did i make the right move by smooth calling?

Party Poker No-Limit Hold'em, $50NL Hero (10 handed) converter

Preflop: Hero is BB with T[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $0.25.
UTG calls $0.50, <font color="#666666">6 folds</font>, Button calls $0.50, <font color="#666666">1 fold</font>, Hero checks.

Flop: ($1.75) 4[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, UTG checks, Button checks.

Turn: ($1.75) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $2</font>, <font color="#CC3333">UTG raises to $4</font>, Button folds, Hero calls $2.

River: ($9.75) 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $10</font>, Hero calls $10.

Final Pot: $29.75

Re: a rivered flush situation
 

Depends on the player. I don't think a call is bad, but you might be missing some value.