10nl, second nut straight

[drsmooth]

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.05/$0.10
8 players
Converter

Stack sizes:
UTG: $9.40
UTG+1: $8.05
MP1: $6.35
MP2: $26.90
CO: $9.20
Button: $9.40
SB: $9.70
hero: $5.15

Pre-flop: (8 players) hero is BB with 4[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img]
3 folds, MP2 calls, CO (poster) checks, Button calls, SB folds, hero (poster) checks.

Flop: 2[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] ($0.45, 4 players)
hero checks, MP2 checks, CO checks, <font color="#cc0000">Button bets $0.3</font>, hero calls, MP2 calls, CO folds.

Turn: 7[img]/images/graemlins/spade.gif[/img] ($1.35, 3 players)



Flop call might look a little speculattive but anyway...

a couple of questions:
What is the best way to get the most value out of this hand?
What is the best way to protect myself against better straights and or flush draws?