I'm kind of in the same boat as I just got 4 kegs off the forum however I just ordered my stuff from MW. I got a Cornelius brand dual gauge regulator (PN 8015 with 5/16" tubing) and the gas and beer tubing sets (PN's 5409 and 5408). They said that's all I need, it came to $80, I was lucky and had a filled 5lb CO2 tank that I previously used for a saltwater aquarium. I just filled my first keg today and am thrilled how easy it is, basically as much work as racking the beer to the bottling bucket minus all the bottle rinsing, sanitizing, filling and capping. Good luck.