I have a love/hate relationship with Los Angeles. I love the fact that you can bump into a movie star and hate the fact that the highways are actually parking lots, even at 2am!! Definitely go to a nightclub in LA, whether your beat is ‘80s, salsa, or electronica.
I think Manhattan Beach is worth the drive south. Laguna Beach is great, too, but a much farther drive, with guaranteed traffic on weekends.
My last trip included a Morrissey Convention, with a visit to Morrissey's home, which happens to be next door to Johnny Depp's home away from his home in France. It's north of Sunset Blvd.
Olivera Street saves you a trip to Mexico by offering restaurants, traditional clothing, Chicano T-shirts, and cultural entertainment. The Amtrak train station is a 2-minute walk, and it's GORGEOUS! It’s very Art Deco.
Quick Tips:
The four-star hotels in LA are sometimes available for under /night. Be a rock star/movie star!! You're in LA! You can get a good rate for hotels around the airport, but it's kind of far from everything. Everyone should go to Disneyland at least once in their lives, but know that you'll pay for a corndog - seriously.
Best Way To Get Around:
The metro is actually pretty convenient. You can actually get by without a car in LA as long as your accommodations are along the metro line, which goes as far south as Manhattan Beach.