I recently picked up a few old Olympus Zuiko wide angles and used adapters to fit them on my EOS camera. Here are a bunch of useful links when looking into manual focus lens on digital bodies.

If you are looking to get into panoramic photography, whether it is single row or mult-row, this is a nice guide on using Really Right Stuff (RSS) equipment to get the job done.

Finally a user friendly and well documented lightbox plug-in for JQuery.