NL100: AK flop action or no? (2 hands)

[NutsPlayer]

1. Party Poker, $0.50/$1 NL Hold'em Cash Game, 4 Players
LeggoPoker.com - Hand History Converter

SB: $122.63
BB: $124.26
Hero (UTG): $102.50
BTN: $102.48

Pre-Flop: K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to $4</font>, BTN folds, <font color="red">SB raises to $14</font>, BB folds, Hero calls $10

Flop: ($29) Q[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $18</font>, <font color="red">Hero ???</font>

Opponent:16/12. Won at SD = 52.

Was my call preflop good or I need to reraise? What to do on flop? Raise/allin or call?

2. Party Poker, $0.50/$1 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

UTG: $108.86
MP: $101.50
CO: $71.86
Hero (BTN): $306.01
SB: $130.38
BB: $95

Pre-Flop: K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (BTN)
2 folds, CO calls $1, <font color="red">Hero raises to $5</font>, SB calls $4.50, BB folds, CO calls $4

Flop: ($16) 6[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] (3 Players)
SB checks, CO checks, <font color="red">Hero bets $12</font>, <font color="red">SB raises to $25</font>, CO folds, <font color="red">Hero ???</font>

Opponent: 22/13. Won at SD = 54.

I think, my preflop here is good. But what I need to do with this mini-raise on the flop? It can be flush draw, I think... Can I reraise here to $75 or just go allin? Or I need to call this bet? But how to play turn then?

Thanks for your answers.