Please go online and and search reviews on the brand of kegerator before you buy, Dont expect much out of anything under $1000. the best brands are True, Beverage air and perlick. The worst is Haier they are cheap because they are junk. What you need to look for is a kegerator with good door seals, maintains temperature through the year and cleans easily. Haier fails on these as well as customer service. If you dont want to spend more than $500 buy a chest freezer from lowes and install an external thermometer and tower tap kit.
Happy drinking!!