Value bet or push?

[nightlyraver]

Middle stage of a $5+.50 (about 300 to start, about 100 left). Blinds are 80/160 and I'm UTG+1 w/ about t1900 and I'm staring down at A [img]/images/graemlins/diamond.gif[/img]Q [img]/images/graemlins/spade.gif[/img]. I need to double up, though I'm not completely desperate, and this will probably be the hand to do it with.

I open for a standard raise of t400 and it's folded around to MP2 who smooth calls. MP2 is prone to making loose calls and overall plays pretty passively from what I have observed. The rest of the table folds.

There is t1,040 in the pot and the flop comes A [img]/images/graemlins/heart.gif[/img]J [img]/images/graemlins/club.gif[/img]7 [img]/images/graemlins/spade.gif[/img] and the action is on me. I have t1,500 left. What's the move?

I'l post the hand results later, but my question is whether I should fire out a value bet (t500 perhaps), push right out or check and fold if I'm taking heat to the hand. Remember, he's mostly loose and passive.



Thanks!