Although its probably too late to help you, I'll hope this helps whoever searches this thread...

As abuffaloian, i can attest there is a ton to so in our area outside of Niagara Falls. That said, two hours is not enough time to go from the airport to a destination and back again. The airport is outside of the city, and two hours just isn't enough to go somewhere and get thru security.

That said, if anyone has more then 2 hours I'd be happy to advise you of what to do and see, and can help as much as I can. Please PM me and I'd be excited to lend a hand!