NL 200, KK w/position

Villain is 17/3.5/1.3 after 2400 hands, though I have never played with this person before, it was all from mining.

Party Poker No-Limit Hold'em, $ BB (9 handed) FTR converter on zerodivide.cx

UTG+1 ($301.15)
MP1 ($193)
MP2 ($204.55)
MP3 ($173)
CO ($200)
Hero ($200)
SB ($122.74)
BB ($483)
UTG ($223.71)

Preflop: Hero is Button with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img]. SB posts a blind of $1.
<font color="#666666">3 folds</font>, MP2 calls $2, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $10</font>, <font color="#666666">1 fold</font>, BB calls $8, MP2 folds.

Flop: ($23) 3[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $17</font>, <font color="#CC3333">BB raises to $34</font>, <font color="#CC3333">Hero raises to $60</font>, BB calls $26.

Turn: ($143) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero

What range of hands can this person have now? Was my flop play ok? How much would you 3bet the flop for?