How dumb is my play?

[cleinen]

Looking back i think my play here is terrible. But was it so bad since i have postion and we were both in the blind?
Party Poker No-Limit Hold'em Tourney, Big Blind is t300 (4 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Hero (t1234)
UTG (t1950)
Button (t2887)
SB (t1929)

Preflop: Hero is BB with 5/images/graemlins/diamond.gif, 2/images/graemlins/club.gif.
<font color="#666666">2 folds</font>, SB completes, Hero checks.

Flop: (t600) 2/images/graemlins/diamond.gif, 8/images/graemlins/spade.gif, A/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets t934 (All-In)</font>, SB calls t934.

Turn: (t2468) 8/images/graemlins/heart.gif <font color="#0000FF">(2 players, 1 all-in)</font>

River: (t2468) 7/images/graemlins/diamond.gif <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: t2468

[curtains]

It's not so bad...most of the time they will fold to your allin.

[freemoney]

when the blinds are so big in relation to your stack pushing almost anywhere with anything can never be that "dumb"