Have been into Singapore about 5 times and through the airport another 7, love the place.

My g/f loves the shopping there and it suits me for all the nerdy electronic equipment!

Things to do:

Have a real Singapore Sling at Raffles
Go to the Night Safari, words cannot descirbe seeing rhinos etc with 10 metres of your bus
Ministry of Sound nightclub, newly built about 18months ago
Santosa Island

and........

The Penny Black, English pub for all expats down on the Quay in the city where you can get a pint.

Very very humid and lots of shops don't open until 10-11am but stay open later. Singapore rocks and makes a great stop over.

Amazingly clean as well, no fag butts/rubbish etc that I have ever seen