You also have to remember that a good sealant gives the car more of a reflective/metallic look while a good carnuba gives the car a deeper, richer look.
I've found best results come by using a good sealant for protection and then a good carnuba for that liquid, deep, 3-dimensional look.
edit: There are a couple good auto-detailing forums out there,
Autopia.org has a good guide to detailing:
http://autopia.org/forum/guide-detai...ect-shine.html
and while he lists specific products in his description, if you search around the internet, the Klasse sealant and the P21S Wax are often listed as the greatest products ever. Seriously.
www.autogeekonline.com was another site I checked out when looking up methods for attaining the perfect shine.
