Good that your looking to get into it mate, its very addictive once starting!
Mitt I would go for a Lambswool Ones or the Dooka Wash Pad. They arent cheap at £18.95 but will last you forever if looked after, and is well worth the pricetag! The Dooka ones are available of their own website.
Grit guards are available on all car cleaning sites, so just get whichever one, and 2 decent buckets.
Drying towel go for the large fluffy ones, such as
http://www.i4detailing.co.uk/acatalog/I4D_Uber_Premium_Drying_Towel_1.html#aUBERDRYAs for shampoo., Autosmart Duet is good as it can be bought in large bulks, and will last you ages if just for your own car, and has an element of protection too it, but still get a good base wax on the car as the wax in Duet wont do the same as a decent wax on the car first.
Wheels use a non acidic product, something like Autosmart Smart Wheels or Auto Finesse imperial. You will probably need various brushes to get in all the gaps too, the EZ Detail brushes are ideal.
Best thing for the carpets is to wait until dried out, then hoover and see what comes up. If marks are left you will need some form of Upholstery Cleaner, doesnt have to be car specific, or a Wet Vac is always a good investment!
Method of cleaning should be -
- Rinse Car & Wheels Off with Water or Snow Foam if you have?
- Sponge into Shampoo Bucket, wash small section of car, rinse in rinse bucket of plain water. Start with the roof and work downwards.
- Rinse area shampoo'd.
- Clean Wheels & Exhausts, and rinse as you do each one.
- Once complete, pat car dry with drying towel, avoid rubbing over the paintwork as such.
Use a seperate mitt for wheels also and never do them first if your using the same bucket to wash them!
Should be a starter for you, enjoy and get some pics up!