Huh... I would only say use the UV filter. A cir-pol is annoying as heck for macro, because it doesn't help with color that much and it takes up a lot of precious light. Plus, you'll probably be shooting with a flash anyways, and the hotspots will be from direct light which a polarizer won't help with anyways.
A hood also gets in the way of lighting. With tubes on, the hood would be touching my subject, which is bad news.
I only use a UV filter, and I only do that to protect the element. If you plan to use the lens for portraiture/landscape/other stuff, then a hood would probably be nice. For macro, I have never, ever used one, and my polarizer has created more headaches than colors.
Just my thoughts.