I personaly love Nu-Finish liquid. It is a polish, not a wax. I did a side by side test on my run-about. 1/2 the topsides with Macguire's carnuba and the other half with Nu-Finish. The MacGuire's side definitly had a higher gloss. However, the MacGuire's stopped beading water
after about a month, whereas the Nu-Finish still forced moderate beading after 9 months.
So now I use Nu-Finish on everything, once a year, and if I desire a higher gloss, I use a carnuba over it.
You can get Nu-finish at most auto part shops, and I think wal-mart too. Here is a link to it on Amazon for 8 bucks and some change.