2 pair - Do you call this overbet?

Reads weren't real good, but I know villian had been tilting because he was taking some ugly beats and losing a lot of money. Then this hand comes up. I wanted a showdown for as cheap as possible, but the guys turn bet complicated things. Also, do you reraise the flop? How about leading the turn? Looking back my play seems too passive.

PokerStars Game #1874353747: Hold'em No Limit ($0.25/$0.50) - 2005/06/10 - 23:09:29 (ET)
Table 'Baucis III' Seat #4 is the button
Seat 1: 13579 ($40.80 in chips)
Seat 2: Perfectset ($49.55 in chips)
Seat 3: xin1575 ($49.25 in chips)
Seat 4: bmweo ($43.85 in chips)
Seat 5: Nitsud77 ($15.45 in chips)
Seat 6: bdawg56kg ($62.05 in chips)
Seat 8: riggie711 ($10.50 in chips)
Seat 9: noose42 ($20 in chips)
Nitsud77: posts small blind $0.25
bdawg56kg: posts big blind $0.50
noose42: posts big blind $0.50
*** HOLE CARDS ***
Dealt to bdawg56kg [4h Kd]
riggie711: folds
noose42: checks
13579: calls $0.50
Perfectset: calls $0.50
xin1575: calls $0.50
bmweo: calls $0.50
Nitsud77: calls $0.25
bdawg56kg: checks
*** FLOP *** [5h 4d Kc]
Nitsud77: checks
bdawg56kg: bets $2
noose42: folds
13579: calls $2
Perfectset: raises $5 to $7
xin1575: folds
bmweo: folds
Nitsud77: folds
bdawg56kg: calls $5
13579: calls $5
*** TURN *** [5h 4d Kc] [Qd]
bdawg56kg: checks
13579: checks
Perfectset: bets $42
bdawg56kg: ???

Whats your move here? What do you put him on?

I'm too tired to figure out what hand he's representing here, but calling the raise then checking the turn is more effective in Limit. Doing so here is almost an invitation to be leaned on because you passively called his flop raise.

Checkraise the flop.Someone will bet their pair or draw;so when it comes back to you raise to either drive them out or charge them two big bets to draw out on you.Lead out the turn;if you're raised here you're up against either a better two-pair or worse a set.