Wow, I wasn't expecting this kind of response!
I'd say not including, time spent in customs, travelling to my hotel and sleeping I'd have about 8-9 hours free? (I arrive in Singapore at 7pm and leave 8pm the following day) I probably should have mentioned I'm not big on sea food but at the same time I LOVE asian food! Also I don't want to do universal studios as I went to both of them in the US a couple of months ago and I'd rather do something cultural in Singapore rather than American. Shopping sounds good, are there any places that sell cheap pc hardware (cheaper than NZ AUS)?
This will be the first time in a foreign country where I will be completely by myself so I will be like a scared/lost puppy..
Thanks for all the suggestions!!