Pretty common situation with a marginal hand late in a $55

[z32fanatic]

This situation comes up a lot for me and I am usually split on folding and pushing. The key thing I'm looking at here is the 3 people left to act all have less than 7BB and the BB is a 14/3 so he's tight. With the blinds this big and everyone short stacked, should I take the aggressive play and push, trying to increase my stack by 33%, or fold and wait to make a better push in a few hands. If you would push, what is the worst holding you would push with? If you decided to fold, what's the worst hand you would push with?

***** Hand History for Game 3007172378 *****
NL Texas Hold'em $50 Buy-in + $5 Entry Fee Trny:17262757 Level:7 Blinds(150/300) - Wednesday, November 09, 04:25:25 EDT 2005
Table Table 66861 (Real Money)
Seat 2 is the button
Total number of players : 6
Seat 2: Button ( $1805 )
Seat 5: SB( $2140 )
Seat 7: BB( $1390 )
Seat 8: UTG( $1255 )
Seat 9: UTG+1( $2000 )
Seat 10: HERO( $1410 )
Trny:17262757 Level:7
Blinds(150/300)
** Dealing down cards **
Dealt to z32fanatic3 [ 4c Ad ]
UTG folds.
UTG+1 folds.
HERO...