Light and heat in wine cellar

I'm just beginning to build a wine cellar -- both in the sense of starting to collect wine for future use, and in deciding to build a small enclosed room in our basement for storing the wine. I've pencilled in an 8'x15' room well away from the furnace-hot water tank, but including the water meter (the next best choice of a location is directly under the laundry room). Right now there's a bare bulb lighting the area I'll be framing in.

What sort of light is appropriate for a cellar? I've discarded the idea of fluorescent fixtures, as I don't expect to be leaving the light on for extended periods of time. Most of the other lighting choices appear to be heat generators that also happen to shed light.

Also, I've been tracking the temperature in that corner of the basement, and it rarely gets below 18 Celsius, and sometimes goes as high as 23 Celsius. This is certainly the warmest basement I've ever had (new house in the Toronto, Ontario area). Although I don't expect to be buying and storing extremely expensive wines, I understand that this temperature range is too high to expect great results. Do I need to look at cooling units for my new cellar?

Regards, Nicholas