The best wax costs £10,000.
I mention that because budget is important.
Halfrauds isn't always best - but there are some good things.
As above, meg's gold class shampoo is good.
Meg's smooth surface/quik clay kit is good.
You can think about Autoglym super resin polish for polishing.
wax is really down to choice, but sticking with autoglym, they have a good HD wax.
I love Megs hot rims but it can be strong - it works if diluted. Megs also do Endurance tyre gel.
As for rubber bits, Autoglym Bumper care, and for windows, autoglym fast glass.
Have a look through the detailing threads here to see what others have used. You'll pick up ideas and recommended products.