Welcome back! Glad to see you had a great time.
I always enjoyed visiting Hong Kong. Been there quite a few times, as I am only 2 hours (by plane) away. In the beginning of my time in Taiwan we had to go there every two months to get a new visa; somehow our company didn't manage to get multiple entry, so we actually had to get a new one, rather then fly to Hong Kong and back in one day; well, good for us
Been a while since I actually stayed there though, after my past few trips from Germany back to Taiwan I merely got off the plane (late AM), went downtown to the nearest HMV, done my shopping (DVDs, usually around 25-30), headed back to the airport and flew to Taiwan with an evening flight.