NL $400 KK on 3 Flush Board with King High Draw

[SuperPokerJedi]

How much do I bet on this flop?
If I bet more I have to drawing outs against a set but then weaker hands may not pay me off (i.e. Jd, 9d draws)?
Can I give the hand up when I have the 2nd Nut Draw?

Party Poker
No Limit Holdem Ring game
Blinds: $2/$4
6 players
Converter

Stack sizes:
UTG: $744.80
UTG+1: $536.40
CO: $672.18
Button: $394
Hero: $389.15
BB: $438.70

Pre-flop: (6 players) Hero is SB with K[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
UTG folds, <font color="#cc0000">UTG+1 raises to $12</font>, CO calls, Button folds, <font color="#cc0000">Hero raises to $63</font>, BB folds, UTG+1 calls, CO folds.

Flop: 8[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/diamond.gif[/img] ($142, 2 players)
<font color="#cc0000">Hero bets $101</font>, <font color="#cc0000">UTG+1 raises to $414.68</font>, <font color="#cc0000">Hero calls all-in $223.15</font>.
Uncalled bets: $90.53 returned to UTG+1.

Turn: J[img]/images/graemlins/club.gif[/img] ($790.3, 1 player + 1 all-in - Main pot: $790.3)


River: 2[img]/images/graemlins/spade.gif[/img] ($790.3, 1 player + 1 all-in - Main pot: $790.3)


Results:
Final pot: $790.3

All Comments on the hand playes welcome as standard!