[oneandonlychaz]

Its not difficult at all to serve draft beer at a party using co2 if its going to be drank in a few hours. I have a 32 gallon brute trashcan that i can put a keg in with a 40lb bag of ice and serve ice cold beer for a nights party. You dont have to worry about co2 pressure very much at all in this situation because beer isnt going to go flat in 4 hours. If you want this to last multiple days or something than yes you will have to keep a keen eye on temp and pressure. I have a rig for when I have my fraternity over where i took the lid of my trashcan and mounted my old kenmore plastic single faucet tower on and put a small hole in the back of the trashcan for the air line to enter and than just ice the keg and tap it (with a low pro coupler mind u) and have a portable tower system.

To sum it up, 1 night party get some ice and a co2 system and put it to whatever pressure it wont foam and keep it cold. Multiple day party you may want to think about a kegerator or a lot of ice.