good or bad play?

[dippy111]

375 ffp qualifier to Sunday Million - 1 entry
No strong read on vilain except that he's not a maniac.
Risky? yes. Bad play? maybe? What do you guys think?
PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Button (t3405)
SB (t4220)
Hero (t2965)
UTG (t3655)
MP1 (t5310)
MP2 (t2035)
CO (t4110)

Preflop: Hero is BB with 7[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">Button raises to t800</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t2965</font>, Button calls t2165.