Sooo... I will say ditto to most of the above....
Transport sucks, but it's not impossible. There's a semblance of a metro, and there is a bus system that can be taken, though you'll run into some very interesting characters... it's just not common for the uh, members above a certain level to use public transport. There are cabs, but I never saw anyone hailing one; mostly they're booked in advance, but I don't see why you couldn't get one off the street. I would ask the concierge/ front desk for specifics when you arrive.
Why are you going? Not to say don't go, but it will help me clarify recommendations for you.
If you're going to 'see Hollywood' - then I would definitely take a tour (loads to choose from); but don't spend much time seeking out or on Hollywood Blvd. itself, unless you're going to see a movie at the Chinese, or across the street at the El Capitan... both GORGEOUS theatres. In addition to the shopping listed above (I'm partial to the Grove, LOVE IT), there's also some good shopping and interesting architecture at Hollywood & Highland,
http://www.hollywoodandhighland.com/home.html, which is the home of the Kodak Theatre (where the Oscars are held).
Eateries: loads, Jerry's Deli is a trendy favourite, good food, lots of it, yet still way overpriced. But a fun atmosphere. You want true deli food with character for cheap? Go to
www.cantersdeli.com, a true Hollywood staple; the waitresses are all about 70 yrs. old and sassy! If you're missing the English pubs, Cat & Fiddle on Sunset is really really good; one of my top favourites. And they have a jazz band on Sunday afternoons in the patio.
Old classic Hollywood: Musso Frank's, the oldest restaurant, on Hollywood Blvd.
Formosa Cafe on Santa Monica Blvd. near La Brea is good ol' Hollywood too; mostly Chinese food, has a good bar, and an, interesting atmosphere (it's an old rail car), usually full of unemployed actors drinking and b*tching
If you go along La Cienega Blvd., southward from Santa Monica Blvd. to Wilshire, there are loads of different types of eateries.
Kate Mantalini's, on Beverly Blvd. is very good; a bit expensive, you can usually spot a star there.
I know a few places I've recommended are on or near Hollywood Blvd., I just always am wary when people say, 'I want to go see Hollywood...'
Hollywood's a state o'mind, baby! Hollywood Blvd. is getting better, but it's also full of homeless people, runaway teenagers and drug addicts, scattered along the Walk of Fame. An interesting dichotomy, but not one to make a special destination.
I'll leave it there for now; I did find a website that covers loads:
www.losangeles.com - check that out, then feel free to ask more questions. DEFINITELY get some sort of guidebook ahead of time.
And if you list out specific places/ restaurants, etc. you've found, it's easier for me to go down the list and say yea, nay, or don't know; as I'm sure I've forgotten some great things/ things to stay away from.
E.