My father has been brewing for probably 8 to ten years now. He's produced probably 75ish batches. He bottled at first, but because it is so much work sanitizing everything, he now brews into kegs.
He uses old pepsi kegs. The lines, adapters and such are pretty commonplace. They are easy to sanitize, inexpensive and work perfectly. He has four kegs I believe, so he always has two on tap, one usually ready to be cleaned or just cleaned and one that is waiting to go into the kegorator.
I don't think he's brewed a bad batch of beer yet!
I'll have to find out where he gets his stuff from, but I know he orders it online and has it shipped to him. He gets kits as he's found that gives the best end-result.
Family Friendly Jeeping in Maine