I have a build to make an alchemist who starts off playing like a rogue and then later gets access to a Dr Jekyll/My Hyde sort of prestige class, allowing one to build a thief who will have an RP reason to switch alignments.
Another build (this one for me) is a half elf which would end up as a wizard 8/alchemist 2/natural alchemist 10, but would count as a wizard 18/alchemist 2 for the purposes of caster levels.
I am happy to share either.
Bow before your unimaginably powerful overlord!
Wait a minute, I'm currently too busy holding a cork in mid air for petty groveling.