Flying Lotus and GLK(Gaslamp Killer) are 2 LA Based musicians that I've been following quite a lot recently. You might just dig them too. Flying Lotus is an instrumental artisan and GLK is a vinyl scientist.

Check em' out:
Flylo:
http://www.myspace.com/flyinglotus

Gaslamp Killer:
http://www.myspace.com/thegaslampkiller

Also check out:
http://www.brainfeedersite.com/
featuring these two and a group of various other musical craftsmen.