We have overidden our new and edit buttons for Cases to go to a custom visualforce page.  This was fine until now we want to utilize Record Types.  Now, regardless of the record type chosen, new cases go to the custom visualforce page instead of the page layout for the record type.  I am thinking that I need another VF page to act as a proxy to route the user to the correct page.  I have read a couple of forum posts but am unsure if they are applicable to my problem.

http://forums.sforce.com/sforce/board/message?board.id=Visualforce&thread.id=4875