I had the distinct pleasure of attending a workshop with Lil' Rev on Saturday at Gryphon Stringed Instruments in Palo Alto. If you're looking for lessons that will take you from simply strumming the chords to reading tablature and more advanced strumming techniques, I highly recommend Lil' Rev's class.
He's also just written a beginner's instruction book that would make the perfect complement to a gift uke for a new player. What I like best about Lil' Rev's book is that it comes with a CD so you can hear what the various techniques are supposed to sound like. I spent years trying to figure out exactly what a "roll stroke" should really sound like. Now future generations of ukers will be spared! Link
I'd also like to send a big Aloha to everyone who attended the workshop with me. Welcome to Ukulelia. Poke around and enjoy!