If you're staying in Downtown LA, don't rent a car. It's a pain in the rear, and parking is expensive. On the other hand, public transit is convenient, cheap and safe. From LAX, take the FlyAway bus to Union Station. There is a bus leaving every 30 minutes. The trip cost is $7. On holidays, check the FlyAway schedule, and the connecting train schedule. Sometimes things shut down on Christmas, New Years, and etc. Once at Union Station, the world is your oyster. The Red Line and Purple Line trains can get you anywhere in downtown. I usually stay at the Bonaventure, LA Downtown (Hyatt), or the Sheraton downtown (around $100-150/night on Hotwire). The Sheraton is at the 7th Street Metro station, about 10 min. from Union Station on Red or Purple line trains. The Bonaventure and LA Downtown are each short three block walks north. The Dash buses run frequently in front of all of these hotels and can get you anywhere you need to go downtown - Staples, the convention center, Disney, and etc. If you're on a budget, the Ramada at Wilshire and Western in Koreatown goes for around $75-90/night. It's a decent hotel, and it's at the end of the Purple Line train at the "Wilshire/Western" stop. All of downtown is accessible via the Purple Line trains there. If you want to venture into Hollywood, the Red Line train has stops at Vine and Highland, deep in the middle of old Hollywood. You can find some motels and hotels fairly cheap there, and all are accessible from the FlyAway->Red/Purple Line train routes. For day trips, Union Station has trains in all directions, including just west of Monrovia to the east, and Santa Monica to the west. There's a train to Long Beach, too. To get to Orange County, there's a real train, called "Metro Rail" that drops you off in the middle of Irvine. There is also a real train that leaves Union Station for San Diego frequently -- around $120 round trip with free Wi-Fi. There's only one word of caution: If your flight is leaving early in the morning, sometimes the trains aren't running. In that case, you can hop a cab to Union Station ($10 from Bonaventure), or take the cab all the way back to LAX for around $50 (flat fee, fixed by city council). I hope this helps all of you doing business in downtown LA or Hollywood!