However If you want to be really particular then this guide might be useful.
A zinc antiseize is better for Aluminium appliacations but copper anti seize is a "good choice" (half moon).http://www.stealth316.com/misc/antiseize.pdf
+1 for copper grease. Cheaply available at Halfrauds and goes a long way, even in a little tube. Grease is to keep moving parts doing so, isn't it...? Copper grease is for static surfaces to prevents the surfaces from reacting over time and thus 'siezing' in place.
Images of LGF's BB removal technique spring to mind, based on situations where someone hasnt looked after a bike and properly (copper) greased the BB or it was probably never greased at all!
My two pence, for what its worth.