Halfdome Danny and I have a thread going that covers this since we are both doing the same thing in slightly different manner.
Paste wax will work, but from my reading, the paste wax adds a layer over the polished surface and tends to dull the reflective surface. When it comes time to polish again, the wax has to be removed before polishing again.
Everything I have read makes me believe a shiny, reflective aluminum surface is a fleeting thing, and work to maintain.
Here is the link to the other thread:
http://www.tnttt.com/viewtopic.php?t=18780&highlight=
Still graced with two eyes and ten fingers (due in no small part to luck!).
Just when you think a problem is solved, an uglier result replaces it.
tony