You don't have very much flexibility in such a small space. Here's a link to a passel of bathroom layouts.

Here is a link that might be useful: Kohler floorplans

If you can post a floorplan of space with adjacent spaces clearly shown (like adjacent closets that you could borrow from) -- then it would be more helpful.

Also there is a thread running re. "Small Bathroom Redo Ideas Needed -- pics posted". You can catch up there.

A small bathroom is a small bathroom, and unless you remodel your home so you can add to the bathroom's space, that's going to be the news. But from that, it does not follow that you're simply stuck with an inadequate bathroom. Replacing worn-out sinks and vanities will surely help, but if all you're doing is more of the same, that's what you'll be left with--more of the same. I would very much recommend buying the very best your budget will allow and searching the Internet for innovative ideas. You will be in the bathroom every day of your life. Why not make that place a true retreat? With a little imagination, you can.

Here is a link that might be useful: Cabinet & Furniture Trends & Information