OK everyone thanks for your replies, I managed to win this SNG so very pleased, although luck did certainly help me along the way, it got to heads up with blinds still 75/150 and took a good half hour to secure the win but I did it. Here are the results of the 3 hands.

HAND #1

I had him covered, figured I was ahead enough of the time to put villian all-in and I did so, although wasn't sure at the time if the move was right or not, glad to see my move was correct.

POKERSTARS GAME #3004814381: TOURNAMENT #14840369, HOLD'EM NO LIMIT - LEVEL II (15/30) - 2005/11/08 - 12:32:11 (ET)
Table '14840369 1' Seat #6 is the button
Seat 1: basicforest (1155 in chips)
Seat 2: GOLD HAND1 (1935 in chips) is sitting out
Seat 3: Jesch30 (3935 in chips)
Seat 5: dagger182 (1505 in chips)
Seat 6: ROCKSTAR1973 (900 in chips)
Seat 8: DaN_AK_ (1915 in chips)
Seat 9: blitz251 (2155 in chips)
DaN_AK_: posts small blind 15
blitz251: posts big blind 30
*** HOLE CARDS ***
Dealt to DaN_AK_ [Qh 7h]
basicforest: folds
GOLD HAND1: folds
Jesch30: folds
dagger182: folds
ROCKSTAR1973: calls 30
DaN_AK_: calls 15
blitz251: checks
*** FLOP *** [7d 3c 6h]
DaN_AK_: bets 60
blitz251: folds
ROCKSTAR1973: calls 60
*** TURN *** [7d 3c 6h] [7s]
DaN_AK_: bets 150
ROCKSTAR1973: raises 300 to 450
DaN_AK_: raises 390 to 840
ROCKSTAR1973: calls 360 and is all-in
*** RIVER *** [7d 3c 6h 7s] [5h]
*** SHOW DOWN ***
DaN_AK_: shows [Qh 7h] (three of a kind, Sevens)
ROCKSTAR1973: shows [8h 7c] (three of a kind, Sevens - lower kicker)
DaN_AK_ collected 1830 from pot
*** SUMMARY ***
Total pot 1830 | Rake 0
Board [7d 3c 6h 7s 5h]
Seat 1: basicforest folded before Flop (didn't bet)
Seat 2: GOLD HAND1 folded before Flop (didn't bet)
Seat 3: Jesch30 folded before Flop (didn't bet)
Seat 5: dagger182 folded before Flop (didn't bet)
Seat 6: ROCKSTAR1973 (button) showed [8h 7c] and lost with three of a kind, Sevens
Seat 8: DaN_AK_ (small blind) showed [Qh 7h] and won (1830) with three of a kind, Sevens
Seat 9: blitz251 (big blind) folded on the Flop

HAND #2

OK, I played this AWFULLY I know, this is probably my biggest leak on my bubble play and glad I can now hopefully fix it, will defiantely be putting out a smaller raise with these chipstacks in future, as would have given me chance to get away from the hand when villian pushed, which I'm sure he would have done of course. Harringtons advice is good, that A8 is generally considered the minimum ace worthy of pushing. But well there's my little bit of luck for the tourney!

POKERSTARS GAME #3004927886: TOURNAMENT #14840369, HOLD'EM NO LIMIT - LEVEL V (75/150) - 2005/11/08 - 12:55:53 (ET)
Table '14840369 1' Seat #9 is the button
Seat 2: GOLD HAND1 (2830 in chips)
Seat 3: Jesch30 (3265 in chips)
Seat 8: DaN_AK_ (2020 in chips)
Seat 9: blitz251 (5385 in chips)
GOLD HAND1: posts small blind 75
Jesch30: posts big blind 150
*** HOLE CARDS ***
Dealt to DaN_AK_ [5d Ad]
DaN_AK_: raises 1870 to 2020 and is all-in
blitz251: folds
GOLD HAND1: calls 1945
Jesch30: folds
*** FLOP *** [Jh Js Jd]
*** TURN *** [Jh Js Jd] [Ac]
*** RIVER *** [Jh Js Jd Ac] [2c]
*** SHOW DOWN ***
GOLD HAND1: shows [Ks Kc] (a full house, Jacks full of Kings)
DaN_AK_: shows [5d Ad] (a full house, Jacks full of Aces)
DaN_AK_ collected 4190 from pot
*** SUMMARY ***
Total pot 4190 | Rake 0
Board [Jh Js Jd Ac 2c]
Seat 2: GOLD HAND1 (small blind) showed [Ks Kc] and lost with a full house, Jacks full of Kings
Seat 3: Jesch30 (big blind) folded before Flop
Seat 8: DaN_AK_ showed [5d Ad] and won (4190) with a full house, Jacks full of Aces
Seat 9: blitz251 (button) folded before Flop (didn't bet)


HAND #3

I pretty much instant-called this, but as he turned over 33 and I was facing a coin-flip, wondered with blinds still small and chips large enough whether I can fold and outplay villian for second. But seems this is pretty much a no-brainer, and I hit my flush on the river setting it to heads up.

POKERSTARS GAME #3004953774: TOURNAMENT #14840369, HOLD'EM NO LIMIT - LEVEL V (75/150) - 2005/11/08 - 13:01:08 (ET)
Table '14840369 1' Seat #9 is the button
Seat 3: Jesch30 (3340 in chips)
Seat 8: DaN_AK_ (4700 in chips)
Seat 9: blitz251 (5460 in chips)
Jesch30: posts small blind 75
DaN_AK_: posts big blind 150
*** HOLE CARDS ***
Dealt to DaN_AK_ [Ad Kd]
blitz251: folds
Jesch30: calls 75
DaN_AK_: raises 250 to 400
Jesch30: raises 2940 to 3340 and is all-in
DaN_AK_: calls 2940
*** FLOP *** [Td 7h 5d]
*** TURN *** [Td 7h 5d] [Qs]
*** RIVER *** [Td 7h 5d Qs] [2d]
*** SHOW DOWN ***
Jesch30: shows [3s 3d] (a pair of Threes)
DaN_AK_: shows [Ad Kd] (a flush, Ace high)
DaN_AK_ collected 6680 from pot
blitz251 said, "gg"
*** SUMMARY ***
Total pot 6680 | Rake 0
Board [Td 7h 5d Qs 2d]
Seat 3: Jesch30 (small blind) showed [3s 3d] and lost with a pair of Threes
Seat 8: DaN_AK_ (big blind) showed [Ad Kd] and won (6680) with a flush, Ace high
Seat 9: blitz251 (button) folded before Flop (didn't bet)

THANKS ALL - Will be hitting up a few more SNG's today so may well be a few more hands to consider later on no doubt!