There's a bike shop in Hitchin that specializes in womens bike gear... http://www.girlsbike2.com/
I've yet to make a trip up there, but am quite keen to check it out as I am on the look out for a new set of leathers... Last set I bought was in NZ, 10 years ago and there was only one style to choose from!! The only option was size!
For the overland trip I picked up an el cheapo jacket from the Ally Pally show for 25 quid or so... Can't remember the brand, but it had the goretex patch, and did the job for the trip... Only started leaking around the zip area after several hours in torrential rain!
Er, I can fully admit this "out loud" now having made the trip from UK to NZ relatively unscathed... but I wore cargo pants / trousers (from Jay's Stores in Surrey Quay's) the whole way... Then again, we did wear open face helmets too, which tends to provoke some controversy on the HUBB....
I wore Belstaff boots and gloves pretty much all the time... the boots were shagged by the end of the trip, but they did take the brunt of any spillages!
Looking forward to hearing others recommendations / experences...