I stripped my "new" frame down to bare metal and currently have it primed. I'm waiting for a nice non-windy day to spray it. I'll let you know how it goes. I'm going to do gloss black and then do the lugs and other detail with white and then clearcoat it.
I saw some 3M type protective film in the latest Excel Sports catalog for $40. That might help protect it from all the chips that people talk of in case you do end up with a decent looking paint job. If I like the way this frame rides after it's built I'll probably get it powdercoated once I get back to the US.