Just checked out those ATO tanks. Look great but I think my wife is going to have to get used to looking at the $2 five gallon bucket. She'd be even more ****ed if I spent $155 on a fancy water jug.
pfan, Take a look at my build thread. I got a Gamma2 Vittles Vault Plus for Pet Food Storage from Amazon (25 lb). It holds around 5-6 gallons of water and I got a Seville Classics Foldable Storage Cube/Ottoman, Charcoal Grey from Amazon as well to hide it.