I have a clay bar and Ilove it ... I have never clean the whole car with it. bit it is excellent at getting tree sapp off the car which is a big prob down here... they can get a little pricey.. I think I bought mine from walmart for 11 dollars. which was alot for all that you got.
as for waxes... I like zymol... now that is a GREAT wax and they make great car washes too. the wax is 18 dollars a bottle. and car wash is 14 i think. They are more expensive than others but they are most definatly worth it. The wax helps to get minor scratches out... but they make one that helps with mild as well... the car wash also helps to get dead paint and wax off... I swear your car feels like silk after your finshed.
Zymol also makes a product called falout (I think is what its called) but you wash your car in sections with it... and it gets sapp and stuff like that off... It also protects the car against acid rain and such...
I really think Zymol makes some really great products you should try them...
www.zymol.com actully when i got my stang... the dealer reccomended it.. because that was what they clean their cars with.