K8s: could've made more chips?

I've been reading this forum for quite some time (not just the STT forum, but all 2+2 forums). Now that I started playing the STT's I thought it was time I posted a hand (sorry, couldn't find a converter for Pacific).

Should I have bet less on the flop? Also, any thoughts on the pre-flop raise are welcome...

***** Pacific Hand History for Game 203181225 *****
$25/$50 Blinds No Limit Hold'em - *** 12 08 20:07:09 2005
Tournament #7016402 $5 + $0.5 - Table #1 (Real Money)
Seat 2 is the button
Total number of players : 6
Seat 10: shedevl2 ( $1000 )
Seat 2: pmm75 ( $585 )
Seat 4: polar32 ( $2143 )
Seat 6: pellit ( $731 )
Seat 7: Thepuke ( $2290 )
Seat 9: Baltus ( $1251 )
polar32 posts small blind [$25].
pellit posts big blind [$50].
** Dealing down cards **
Dealt to pmm75 [ Kc 8c ]
Thepuke folds.
Baltus folds.
shedevl2 folds.
pmm75 raises [$150].
polar32 calls [$125].
pellit folds.
** Dealing Flop ** [ 8d, Kh, 5d ]
polar32 checks.
pmm75 bets [$435].
polar32 folds.
** Summary **
pmm75 collected [$785].