i generally use a 27 character, alpha-numeric mixed-case password. i don't figure it's very likely that it's going to get cracked. you know. something like
82dwHE7dl29D69G30zltnfau26m
wee!
remembering it can be a bit of a pain in the ass, so i break it down like this:
8 8 6 5
and i always use the password generator that i wrote to come up with 'em. it's good stuff