Ok, Kato doesn't seem to make a turntable, I have plans to install one on my layout and use Unitrack.  What's the best way to go about connecting a Heljan 98' Turntable with Kato Unitrack?

Has anyone tried using these on Kato unitrack?

If you look around in Ebay, you might find a HO Hogwarts Express train set there.  That's how I got my Hogwarts Express train set.

Ok, first off, I'm about a decade behind on the times as far as new types of HO track is concerned.  Use to be that Atlas was the big brand for HO scale tracks, that I was aware of.  Now there are several differant brands that I'm aware of.  What is the differance between each brand of Track, in terms of over all quality?  I've tried researching this on the net and had no luck in finding the info I seek anywhere.