I like to use movie phrases or song lyrics to generate random-looking passwords:
agnblb8daw = "ain't got nothin' but love babe, 8 days a week"
Of course, when I really need security, I just use Picard's password:
1734-6732-1476-CHARLIE-327-897 7-7643- TANGO-732-VICTOR-731-1788-8732 -4767-8976- 4376 Lock!