Two Hands, same tourney. (HH)

1) First... a simple should I have played this hand? jarofj appeared to be quite loose and went all-in quite a few times prior.
$5+$1 (real money), hand #734,560,805
Qualifier to $30+3 Multi Table Tournament, 18 Jul 2006 09:59 PM

Seat 2: stormshelter [KD,QD] ($6,895 in chips)
Seat 6: 5BlackAces ($13,073 in chips)
Seat 7: sikuri ($7,651 in chips)
Seat 8: jarofj ($2,536 in chips)
Seat 9: giesit ($7,110 in chips)
Seat 10: coldkegs2go ($4,735 in chips)
ANTES/BLINDS
stormshelter posts blind ($150), 5BlackAces posts blind ($300).

PRE-FLOP
sikuri folds, jarofj bets $2,536 and is all-in, giesit folds, coldkegs2go folds, stormshelter calls $2,386, 5BlackAces folds.

FLOP [board cards 4H,3S,10H ]

TURN [board cards 4H,3S,10H,AS ]

RIVER [board cards 4H,3S,10H,AS,6H ]
SHOWDOWN
jarofj shows [ JC,JD ]
stormshelter shows [ KD,QD ]
jarofj wins $5,372.

2) Same tourney. Any suggestions on how I could have played this differently? Yes, I know I won, but you can't only analyse the defeats.
Seat 1: hedkoma0 ($2,195 in chips)
Seat 2: stormshelter [QC,AH] ($2,250 in chips)
Seat 3: Kanttura ($3,680 in chips)
Seat 4: bdbmt ($3,420 in chips)
Seat 5: Polllux ($4,732 in chips)
Seat 6: 5BlackAces ($4,025 in chips)
Seat 7: sikuri ($7,533 in chips)
Seat 8: jarofj ($5,150 in chips)
Seat 9: giesit ($4,205 in chips)
Seat 10: coldkegs2go ($4,810 in chips)
ANTES/BLINDS
giesit posts blind ($50), coldkegs2go posts blind ($100).

PRE-FLOP
hedkoma0 bets $400, stormshelter calls $400, Kanttura folds, bdbmt folds, Polllux folds, 5BlackAces folds, sikuri folds, jarofj folds, giesit folds, coldkegs2go folds.

FLOP [board cards 6H,QD,QH ]
hedkoma0 checks, stormshelter checks.

TURN [board cards 6H,QD,QH,8C ]
hedkoma0 bets $400, stormshelter bets $800, hedkoma0 calls $400.

RIVER [board cards 6H,QD,QH,8C,9D ]
hedkoma0 checks, stormshelter bets $1,050 and is all-in, hedkoma0 calls $995 and is all-in.

SHOWDOWN
stormshelter shows [ QC,AH ]
hedkoma0 shows [ KD,KC ]
stormshelter wins $55, stormshelter wins $4,540.
SUMMARY
Dealer: jarofj
Pot: $4,595
hedkoma0, loses $2,195
stormshelter, bets $2,250, collects $4,595, net $2,345
giesit, loses $50
coldkegs2go, loses $100

Hand 1 is probably a fold. QK is probably one of the most overplayed hands, but it really is a very bad hand to be calling an all-in with preflop. Since you are only 6 handed I would have called there if the villain had something like 1000 left in chips (and basically should be pushing any two), but there I would have grudgingly let it go.

Hand 2 - it really doesn't matter how you played it since your opp had a monster.

1) fold preflop

2)bet flop (flush draw), don't minraise, otherwise it's fine (any decent player needs to laydown his kings here). Check flop and raise turn totally smells like a queen here. Betting the flop looks like a c-bet, so its preferable.