For less than half of the price of the fancy kegerator you can buy a kit to turn an existing fridge into a kegerator. This kit gives you kegs, lines, taps and faucets. Add a 5# co2 tank to it and you are ready to roll for under $350.

I want to add that this is more work than the other kegerator, but some people like to build their own things. This could be one of those things.