Hi Fiona
I have a friend in Newbury who might be willing to help you but don't know anyone in & around Wokingham sorry! There is also a top groomer again in Newbury who breeds Cockers & has given demonstrations on handstripping Cockers at seminars etc - she might be willing to help (though I expect she would charge you :-) ) Let me know if you want either of these contact numbers. Although there is grooming info on websites, I really think you need to watch someone actually doing it for real, reading from books/websites alone won't be enough. Have a look at
Pam's site & also
Show Trimming .
As to what you need to buy, your basic kit should include a Spratts 76 comb with narrow teeth (often called the Spaniel Comb), a wide toothed comb, a slicker brush,
a pair of thinning scissors (46 teeth in the serrated side) & a straight-edged pair of scissors. You could also get a Coat king (new tool which helps to strip out puppy coat) There are various places where you can purchase these things but if you're coming to Crufts, why not get it all here as often there will be special offers - stalls to try are Diamond Edge, Simpsons, Allbrooks & Hub International.
Jane