Los angeles metro day pass help?

As usual, I agree with "Obviousman." Only thing: If you're traveling with other people and get a MetroLink Family 4Pack for $29.00, it is not good on Metro Rail or Metro Bus. Sounds, though, like you'll be traveling alone, so I'd take MetroLink from Anaheim, and as he told you, your MetroLink ticket will pay for your Metro Rail and basic (local) Metro Bus travel.