Hmmmm...while currency exchange isn't the best at the airport, with 15 hours or so, you willl want to focus your time on sightseeing.

What Chinatown suggested, shouldn't cost you too much. Peak Tram costs about $7? I like the tram as you get the experience of a steep climb.

While you are at the peak, can do the sky terrace 428 to see most of Hong Kong but it's an additional cost.

If you have the time, I recommend that you ditch the tourist area up at the Peak and do the 1 hour circular walk called Hong Kong trail (along Lugard and Harlech Roads) --- doesn't cost you anything. You'll have other opportunities to the skyline -- and for free. You can also hike up to Victoria Peak trail and get a free few of Hong Kong as well. I found it relaxing when I was there 1 month ago.

Taking the Star Ferry has been a favourite of mine. Costs almost next to nothing and you get a great view of Hong Kong.

I also recommend you get an Octopus card near one of the MTR train stations. This will give you access to the Peak, Star Ferry, and most of Hong Kong's transit system. You can even pay for food stalls that are near the MTR.

Wrobably best to walk along the water's edge on the Kowloon edge as Chinatown suggests. Great views.

If you want to splurge, Pennisula Hotel has tea time. I'm not sure if it's still there, but the Felix lounge on top of the Pennisula has some great views of Hong Kong Island.

The big bus tour looked interesting. It may be worth it with a limited time budget. While you can take the MTR subway to get most of the same places, you'll be travelling underground -- thus missing some of the sights. A very cheap alternative is to take the tram (not peak tram) from Admiralty to causeway bay. Use the Octopus card or pay a few bucks Hong Kong.

Azreal