Should i slowplay and extract or shove?

[Black winter day]

UTG is a solid TAG, shorty is some random donk.MY image should be pretty solid by that point.

Cryptologic
No Limit Holdem Ring game
Blinds: $2/$5
5 players
Converter

Stack sizes:
UTG: $498.25
CO: $140.81
Button: $1480.65
Hero: $921.05
BB: $294.95

Pre-flop: (5 players) Hero is SB with 5[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">UTG raises to $20</font>, CO calls, Button calls, Hero calls, BB folds.

Flop: 2[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/spade.gif[/img] ($85, 4 players)
Hero checks, <font color="#cc0000">UTG bets $70</font>, <font color="#cc0000">CO raises all-in $120.81</font>, Button folds, Hero ?

Whatever i do, i reveal my hand.TAG's hand at that point is pretty defined - he has an overpair, which he would probably fold if i shove or has Fd+overs which he won't fold anyway.So, my question is, should i just flat call (and possibly convince him that i am the one that has FD so that he would push over the top or on the blank turn) and milk him for tiny bets later or just shove?