I guess a good place for me to start would be the song that pretty much made me want to play bass in the first place. Tim starts with what is probably his most funktastically fun solo at the beginning, and carries that same funky power through the whole song. It's not exactly a hard song, playing it well involves more of playing it powerfully and passionately, since there's plenty of space for each note. That intro solo may take a while to nail (I remember staying up until 2 am in 8th grade working on it... good times), but the amount of fun and swagger you'll have while playing it are worth it. Of course, use index and middle fingers, no thumbs, NO PICKS. Best way, probably easiest way to play it. Ultimate Guitar has a great tab for it here. You can listen to it here.
Oh, and I don't want to hear any of your Bulls on Parade crap.