Standard state selection is a bit of a pain because I would basically have to mak forms for all provinces in the whole world.
It is, but it has been done before… and by that I mean that you really shouldn’t *have* to redo it all yourself. I’m assuming you’re not coding from scratch (the site has a Joomla-esque CMS feel to it). I would think that someone already provides that solution, at least for larger countries such as the U.S. and Canada.
The postal code based proximity search stuff may even be available.