Another hand from the DD:

Full Tilt Poker Game #14440301651: Daily Double - A (105189405), Table 98 - 20/40 - No Limit Hold'em - 21:28:32 ET - 2009/09/02
Seat 1: _maky17 (3,195)
Seat 2: grindstugaosd (1,815)
Seat 3: MitchySlick3 (4,375)
Seat 4: moosevuitton (1,910)
Seat 5: Yendor Nevets (2,060)
Seat 6: cajunboy645 (3,300)
Seat 7: betmanwest (6,015)
Seat 8: swadmin (940)
Seat 9: dnrules (1,885)
swadmin posts the small blind of 20
dnrules posts the big blind of 40
The button is in seat #7
*** HOLE CARDS ***
Dealt to dnrules [7s 5d]
_maky17 folds
grindstugaosd raises to 80
MitchySlick3 calls 80
moosevuitton folds
Yendor Nevets folds
cajunboy645 folds
betmanwest calls 80
swadmin folds
dnrules calls 40
*** FLOP *** [3h 4d 6d]
dnrules checks
grindstugaosd checks
MitchySlick3 bets 120
betmanwest calls 120
dnrules has 15 seconds left to act
dnrules raises to 560
grindstugaosd folds
MitchySlick3 has 15 seconds left to act
MitchySlick3 folds
betmanwest folds
Uncalled bet of 440 returned to dnrules
dnrules mucks
dnrules wins the pot (700)
*** SUMMARY ***
Total pot 700 | Rake 0
Board: [3h 4d 6d]
Seat 1: _maky17 didn't bet (folded)
Seat 2: grindstugaosd folded on the Flop
Seat 3: MitchySlick3 folded on the Flop
Seat 4: moosevuitton didn't bet (folded)
Seat 5: Yendor Nevets didn't bet (folded)
Seat 6: cajunboy645 didn't bet (folded)
Seat 7: betmanwest (button) folded on the Flop
Seat 8: swadmin (small blind) folded before the Flop
Seat 9: dnrules (big blind) collected (700), mucked

I called the min raise preflop because of pot odds.
I flopped the nut str8 and I'm really wondering if there was a better way to play it.
I was hoping the original raiser had a high pair and go broke to me. I don't really like the check raise in this spot but I feel I have to charge people to draw to the flush.

Maybe I should just lead out on the flop and reevaluate if a diamond hits the turn?