WSOP Qualifier hand - flopped bottom set - how fast do you play it

[TripDaddy]

Full Tilt Poker Game #48845242: WSOP Main Event Qualifier (2969098), Table 4 - 100/200 - No Limit Hold'em - 22:32:38 ET - 2006/03/09
Seat 1: TAMPABAY_ACE (970)
Seat 2: beardy200 (65), is sitting out
Seat 3: HERO(3,660)
Seat 4: aaronjsimon (7,940)
Seat 5: PatrickO (8,110)
Seat 6: plopone (6,184)
Seat 7: Calc77 (4,200)
Seat 8: yab-yum (7,680)
Seat 9: JFrank (3,890)
aaronjsimon posts the small blind of 100
PatrickO posts the big blind of 200
The button is in seat #3
*** HOLE CARDS ***
Dealt to Trips013 [2h 2c]
plopone folds
Calc77 folds
yab-yum folds
JFrank calls 200
TAMPABAY_ACE folds
beardy200 folds
HERO calls 200
aaronjsimon calls 100
PatrickO checks
*** FLOP *** [Qh 7d 2d]
aaronjsimon bets 500
PatrickO folds
JFrank calls 500
HERO ????