Snowboarders brewing, like it!
I'm English so not used kegs yet, but probably will after the move to Colorado. Just cask brews with top fermenting yeasts and bottle off half of it. And I like my beer cold!
Brewing is fun, experimenting with ingredients and altering when you add stuff to the boil (or after) changes things a lot. I've had OK results with coffee. Does add some bitterness. Are you adding fresh grounds in a bag or just adding strong brewed coffee to the wort? Either way boiling water with it should kill the nasties. I found adding coffee too early gives a tobacco flavour which isn't good at all!