done all while listening to cornelius's music :] or should it be cornelius' ??

It's either way.

Well, actually, it's s' only if the name is either mythological or historical. So, Jesus or Moses or Odysseus all warrant an s'. However, common names, "Cornelius" probably included, that end in s warrant an s's.

That said, I'm sure that you can actually get away with writing it however you want.

id rather have comments about the design rather than comments about my comment? haha. but i guess this design sucked