This from amazon. Tried and tested by a good many of us here, with very positive feedback.
Plus a Keg from a reputable scrapyard for a maximum of $30. This will give you a 15 gal pot instead of the 7.5 gal in your link.....Plus you can really kick the poo out of it without too much harm (It's always best to plan ahead of your obsession)
Steven Hawking ~ As we say in science, the England football team couldnt hit a cows arse with a banjo