is limping with KTs here awful? Oh and then there's the flop play

[ImNotSoLucky]

With a limper in front of me and most likely best position on flop what is the best option pre flop here? AFter that, given a call pre flop what is the play when it is checked to me on the flop?

Seat 2: SOMFMF ( $3760 )
Seat 3: PaDaddy ( $6248 )
Seat 5: chriswj71 ( $2008 )
Seat 6: math4living ( $5350 )
Seat 8: wolv56 ( $4900 )
Seat 10: NoCorners ( $5545 )
Seat 4: Hieronymus70 ( $9827 )
Seat 7: BoratDances ( $9792 )
Seat 1: teoball ( $3690 )
Seat 9: Okelydokely ( $10072 )
Trny:14753342 Level:7
Blinds (100/200)
** Dealing down cards **
Dealt to SOMFMF [ Kh Th ]
math4living folds.
BoratDances folds.
wolv56 folds.
Hieronymus70: ..
Okelydokely folds.
NoCorners calls [200].
teoball folds.
SOMFMF calls [200].
PaDaddy folds.
Hieronymus70 calls [100].
chriswj71 checks.
** Dealing Flop ** [ 5s, Qd, Kd ]
Hieronymus70 checks.
chriswj71 checks.
NoCorners checks.
SOMFMF ?????????

I will post the rest of the hand for more discussion after some input thusfar in the hand. Thanks guys