I'm very interested in other wet surfaces as well such as on tables, floor, ground (especially puddles).   I used to have a shader set-up for wet ground but I can't seem to find it anymore.

Hi there Please have look on this

http://www.renderosity.com/mod/forumpro/?thread_id=2800552&page=4&page_number=2

or this 

http://forum.runtimedna.com/showthread.php?81455-wet-look-for-dolphins

Hope this helps

Thanks,Jura