I use to use the 5 gallon pop kegs instead of bottling. You can buy them full of carbonated water from the local pepsi or coke distributor. I would stay away from the pre-mixed pop kegs due to the sugar. connectors were easy and cheap to get. Of course, you need a CO2 system to make it work that way.
I liked homebrewing, but it was more work than I wanted to spend making a batch. My ever last batch was ruined when I stuck the primary in a to cold of a spot and the fermentation stopped. It did startup up again, but was just not that great tasting.
Tom