This link may help you out a little.
viewtopic.php?t=5286
To get started I would recommend the following:
* 2 buckets - one for washing, one for rinsing mitt
* Sheepskin wash mitt
* power washer
* snow foam lance and snow foam (used with power washer)
* a good cleaning shampoo
* a polish
* a good wax or sealant
* a wheel wax or wheel sealant to seal and protect your alloys and your shiny exhaust tips!
* rain repellant (Gtechniq G1 for the win

)
* tyre dressing
Some recommendations on particular products are enclosed in the above link but also have a look in the detailing section of the forum for products recommended by other members
