Help me plan a romantic trip to Niagra?

[_TKO_]

I'm looking for advice on where to stay, what to eat, and what to do at night time. We'll be going mid-June for 3 days and 2 nights, probably Sat-Mon or Sun-Tues. She's not 21 yet, so the Canadian side would be better for anything involving alcohol. We'll have a car available, if necessary.

Any help / links would be appreciated.