ATo 3-flush board HU

[CrMenace]

Here's one that I've tried to figure out on my own offline, but thought I would get everyone involved.

This was my very first hand at the table, so obv. no reads.

PokerStars 1/2 Hold'em (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is BB with T[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises</font>, <font color="#666666">5 folds</font>, Hero calls.

Flop: (4.50 SB) Q[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero???

What's the plan? I did some number crunching off line, and we are pretty close to 50% against a 99+, ATs+, AJo+, KQs pfr range. Any wider range and I'm ahead. So I should at least be c/c'ing the flop, but should I donk or c/r? If I c/c, is the best plan to c/r a safe turn?

I've stopped the action here so as not to bias the responses, but I will add more streets after I get home tonight if it's interesting.