Bob.. I ran the upgrade assistant that's on microsoft's site.  The only real issue I found is that I use autocad 2012 for school and its incompatible.  I can still go to autocad 2013 and just downsave my stuff when I have to take it to work on the school computers.  Other than that, it says that daz studio is compatible and luxrender is linked on the windows8 applications website.  Hopefully, I'll find no issues with it playing nice with Reality.