that "eerie" feeling...i'm new to full ring...25/50 PS v. ike

[dlpnyc21]

First week I've ever played full ring online, and first time on PS 25/50. Villian is philivey2694, aka ike on 2p2. I view him as a very very strong player capable of making some bluffs. Obviously he's never going to turn over a bluff here, but I'm pretty sure he thinks I think he is slightly overaggresive. Only history we have is the day before I stacked him on a hand where I raised his c-bet with a pair+fd, and he shoved with a gutter+unders that hit on the river, but only after I housed up.

I make a donkey raise with a speculative hand FR. H@ll, who gives me zero respect, calls and philivey calls from the blinds. Flop is an ugly one, paired with my flush draw. Ike chks, I c-bet, he chk calls. At this point my range for him is, similar flush draw, trips, house, or some kind of pocket pair. Turn brings my flush. He checks, and I decide to bet (what do people think of this???). He pauses for a bit then calls again. By the river we both have more than a full buy in left. He checks again. How much should I bet, or should I just check behind? My read is that on the turn I just got a weird feeling he was huge based on timting, but who knows.

Advice on all streets welcome, and yes, I made a very poor raise pf, but let's ignore that for the time being.

Poker Stars - No Limit Hold'em Cash Game - $25/$50 Blinds - 5 Players - (LegoPoker HH Converter)

SB: $11,146.00
BB: $1,000.00
<font color="black">Hero (UTG): $8,308.00</font>
CO: $4,992.50
BTN: $8,164.50

<font color="black">Preflop:</font> Hero is dealt K[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/spade.gif[/img] (5 Players)
<font color="red">Hero raises to $200.00</font>, CO folds, BTN calls $200.00, SB calls $175.00, BB folds

<font color="black">Flop:</font> ($650) 6[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $525.00</font>, BTN folds, SB calls $525.00

<font color="black">Turn:</font> ($1700) 3[img]/images/graemlins/spade.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $1,315.00</font>, SB calls $1,315.00

<font color="black">River:</font> ($4330) 7[img]/images/graemlins/club.gif[/img] (2 Players)
SB checks, <font color="red">Hero ?????