check out this place,
http://www.servu-online.com its where I order my bar supplies...they will send you a free catalog. As for the machine, they are maintance intensive... the ratios of surup to water have to be maintained, the heads cleaned every few days, and setting up the hoses, CO2, pump, drains, etc...can be a pain. Call one of their techs first or a distributor....who ever installs it needs to know what they are doing
good luck
