How to play this against a TAG?

[Guido]

My opponent was pretty aggro and I was raising a ton so he came after me sometimes. Please tell me how you would play the flop and turn. Should I check the flop? If not, how much would you bet? If you play it the way I did, how would you play the turn?

Party Poker
No Limit Holdem Ring game
Blinds: $2/$4
5 players
Converter

Stack sizes:
Guido: $709
CO: $944.64
Button: $418.90
SB: $396
BB: $167

Pre-flop: (5 players) Guido is UTG with K[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">Guido raises to $15</font>, CO calls, 3 folds.

Flop: T[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] ($36, 2 players)
<font color="#cc0000">Guido bets $25</font>, CO calls.

Turn: J[img]/images/graemlins/heart.gif[/img] ($86, 2 players)
Guido? If you bet, how much? If you check and he bets the pot, what do you do?

Thanks,

Guido