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

[NutsPlayer]

1. Party Poker, $0.50/$1 NL Hold'em Cash Game, 4 Players
LeggoPoker.com (http://www.leggopoker.com) - Hand History Converter (http://www.leggopoker.com/hh)

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

Pre-Flop: K/images/graemlins/spade.gif A/images/graemlins/diamond.gif 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/images/graemlins/club.gif K/images/graemlins/club.gif 7/images/graemlins/diamond.gif (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 (http://www.leggopoker.com) - Hand History Converter (http://www.leggopoker.com/hh)

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

Pre-Flop: K/images/graemlins/club.gif A/images/graemlins/spade.gif 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/images/graemlins/diamond.gif A/images/graemlins/heart.gif 8/images/graemlins/diamond.gif (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.

[bsball8806]

Hand 1: Make it 70 and call a shove.

Hand 2: Make it about 65, and call a shove.

[NutsPlayer]

First hand: Hero raises to $50, SB raises to $78 and is all-in? Hero ???

What he can have here?

[bsball8806]

AK, AA, QQ, KK.

[NutsPlayer]

And if their are this 4 hands, why you say about shove?

[wudabum]

Hand 1 is where I look at aggression factor, the more aggro he is, the more willing i am to get it all in preflop. The call preflop is fine in my opinion. I put him on TT-QQ, maybe even AK, but at this point, i'm happy getting it all in on the flop.