NL 10 top pair + nfd oop what's my line

[zyrrth]

Titan No-Limit Hold'em, $0.05/$0.10BB (Titan HH Converter by Kreatief)

CO ($8.28)
Button ($21.83)
SB ($10.32) (Hero)
BB ($9.65)
MP1 ($7.27)
MP2 ($10.87)
MP3 ($2.95)

Preflop: Hero is SB with T[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img]
<font color="#666666">1 folds</font>, <font color="#CC3333">MP2 raises to 0.4</font>, <font color="#666666">1 folds</font>, CO calls $0.40, Button calls $0.40, Hero calls $0.35, <font color="#666666">1 folds</font>,

Flop: 3[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img] ( $1.7 )
Hero

Preflop might be a fold or whatever but i felt like gambling in this spot.

Do I check or ist it better to lead out in this spot? Obv i want to get it AI asap.