Play for first (Following a read)....... thoughts?

Full Tilt Poker Game #5115941188: $16,500 KO Guarantee (38150935), Table 10 - 6000/12000 Ante 1500 - No Limit Hold'em - 4:49:14 ET - 2008/02/04
Seat 4: rubbarose (679,514) Good sized Chiplead. At this point in the tournament I felt like I wanted to play for first and work on getting HU with 5-1 adv. I had seen blur push very aggresive preflop but laydown marginal hands post.
Seat 7: blur5f6 (403,990)
Seat 8: jared03 (197,496)
rubbarose antes 1,500
blur5f6 antes 1,500
jared03 antes 1,500
rubbarose posts the small blind of 6,000
blur5f6 posts the big blind of 12,000
The button is in seat #8
*** HOLE CARDS *** [Ad 8h]
jared03 folds
rubbarose calls 6,000 - I really like to limp here with A rag.
blur5f6 has 15 seconds left to act
blur5f6 raises to 36,000
rubbarose calls 24,000 - His small reriase looked weak. I could have been a stronger play but hadnt seen that from blur all tourney.
*** FLOP *** [5d 9d 7s] - I liked the flop - gutshot/overcard/backdoor flush draw.
rubbarose checks - Planning a reraise entire time. (probably getting impatient. it was 2am with work in 4 hours.)
blur5f6 has 15 seconds left to act
blur5f6 bets 42,000
rubbarose raises to 642,014, and is all in - barely pause before I reriased all-in. Truly felt like he would lay down most hands here and I would have expanded my chiplead. A poor judgement and a large amount of wasted equity and chipstack.
blur5f6 has 15 seconds left to act
blur5f6 has requested TIME
blur5f6 calls 324,490, and is all in - A Ballsy call for all your chips (KUDOS). I probably would made the same with small flushdraw/gutterball.
rubbarose shows [Ad 8h]
blur5f6 shows [6d 2d]
Uncalled bet of 275,524 returned to rubbarose
*** TURN *** [5d 9d 7s] [3d]
*** RIVER *** [5d 9d 7s 3d] [4h]
rubbarose shows Ace Nine high
blur5f6 shows a flush, Nine high
blur5f6 wins the pot (809,480) with a flush, Nine high
*** SUMMARY ***
Total pot 809,480 Rake 0
Board: [5d 9d 7s 3d 4h]
Seat 4: rubbarose (small blind) showed [Ad 8h] and lost with Ace Nine high
Seat 7: blur5f6 (big blind) showed [6d 2d] and won (809,480) with a flush, Nine high
Seat 8: jared03 (button) folded before the Flop


that is a 2.5k hand.