WSOP $2K early- Nitty or Crazy ?

[renodoc]

This is the first or second orbit, I haven't played a hand yet.
Stacks are around the starting 4000.

Folded to me in CO with J [img]/images/graemlins/diamond.gif[/img] 8 [img]/images/graemlins/diamond.gif[/img] and I raise to 150.
Folded to BB who calls.
BB is a bridge-playing caveman looking guy who I think I should recognze but don't. He has won some Bellagio tourneys I find out later.

Flop: 7 [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/heart.gif[/img] 5 [img]/images/graemlins/club.gif[/img]

check- check

Turn: T [img]/images/graemlins/diamond.gif[/img] [img]/images/graemlins/grin.gif[/img]

BB bets 600
Hero makes it 1200
BB calls.

River T [img]/images/graemlins/heart.gif[/img] [img]/images/graemlins/mad.gif[/img]

BB fires out 1200, leaving about 1400-1500 left

Hero: Call or push ? Comments on turn welcome also.