I'll leave out the obvious: my wife, my kid, homemade mac & cheese, boobs.
The smell of honeysuckle
People (or animals) who like to laugh
When a stranger speaks to you first (exceptions: street-corner crazies, Amway salespeople)
Blasting good music in my car (I'm already half-deaf, so why not?)
Movies that are a pleasant surprise (JJ Abrams' Star Trek, Beavis & Butt-Head Do America) instead of a disappointment (there isn't enough bandwidth)
A good story told well (and economically)
The smell of a baby (before he fills his diaper, that is)
The sound of an oboe, a bassoon and a cello (individually or together, I'm not picky)
Bonus (and self-pimpery): funny, ridiculous porno movie titles
Let's hear yours.