I'm in the OPs boat as well, so feel free to keep throwing out info. I'm meeting a friend at the airport (SIN, don't know what, if any, others there are) at just after midnight in January, and neither of us have been to singapore before. When we get there, we will be staying for 3 nights, counting our arrival night as it's worth paying for a whole night if it means not checking out somewhere/relugging luggage, and want to get to a hotel in a decent place from which to explore on foot, and near cool bars and whatnot. So rather central I suspect. We're splitting the room so price isnt a massive concern, but under $200/night (or less, we're not here for luxury and don't plan to do much more than sleep in the room) would be ideal.
Sorry for the rather vague question. I typically try to do some research first, but I just saw this thread and figured why not.