standard flop low draw. really need to learn this

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I am a hold'em player. That means I usualy bet draws. Now that I play O8 and draw for low with very slim or no high prospects, I usually bet aswell. Look at this hand, is this standard play or overaggressive with little pot equity?

Party Poker (9 handed) converter

Preflop: Hero is UTG+1 with 4[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/club.gif[/img].
UTG folds, Hero calls, folded to button who calls, SB completes, BB checks

Flop: J[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Hero bets, button calls, SB folds, BB folds

Turn: 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero bets, button folds