Middle Pair

[Hair_of_the_Dog]

I am really stuck on how to deal with middle pairs.

Average live 3/6 game, lots of loose players, most passive, a couple of aggressive

Hero J [img]/images/graemlins/spade.gif[/img] T [img]/images/graemlins/spade.gif[/img] in EP

PF Hero limps
4 other callers including blinds

Flop 5sb [ Q [img]/images/graemlins/diamond.gif[/img] T [img]/images/graemlins/club.gif[/img] 4 [img]/images/graemlins/diamond.gif[/img] ]
Hero ?