You should try to track down "Lost Cause," "Rowboat," and "A**hole." Those are some good Beck tracks.
Odelay is easily my favorite Beck album. Its' so damn diverse!
You also might wanna check out "Pay No Mind," also off Mellow Gold. Really great track. I saw him live many years ago when he was touring for Midnight Vultures; it was a fantastic show.
"Woke up at 9.55am. Soon as I woke up, I looked at Suzanne and she looked at me. I said, 'Did I tell you about the immune system?' Suzanne starting laughing, I said, 'it's amazing.' She said, 'Not now.'"