Drink Fridge

I want a new drink refrigerator, to replace the old 18" cube fridge I had in college we've been using as one. I've taken some measurements, and now I know what I'm looking for.

• It must be no bigger than 18"x18"x24" to fit in the available space.
• It should not have an integrated ice cube tray freezer section; this wastes space, and the function will be filled by the real freezer.
• The door should have a rack sufficient to hold 4 metric fifth bottles of the standard dimensions. [750 mL wine bottles]
• The body should consist of shelves extending straight back as far as the working innards of the refrigerator allow. Ideally, they should be configurable, but one shelf stuck right in the middle would do the trick nicely. There should be plenty of room to accommodate 12 oz bottles [or cans] standing upright and to remove them without too much difficulty. Even at only 18" high, a single unobstructed shelf would accommodate this perfectly, so it should be doable.
• It should be inexpensive. I may or may not have a use for it beyond about 9 months from now, I don't have a ton of funds, and I don't know if I could get my housemates to chip in on the cost.
• It should be at least as energy efficient as the current model.

Obviously some of the shoulds may contradict one another.

The goal here is to help my housemates get their beer off the floor (and out of the main refrigerator, which we've largely succeeded in), give us some space to keep some wine chilled, and let me chill my sake. The current solution didn't work as well as I'd hoped for this.

Now that I've spec'ed it out, anybody have any suggestions for how I go about searching for and acquiring such a thing?