I've heard it said in the context of cycling that there's no such thing as bad weather, only bad clothing.
Well, on the evidence to date lycra longs on the legs is a pretty good clothing solution, and I already had a decent rain jacket.
The final touch is the cap with the long visor that I wear under the helmet. This keeps the rain off my glasses just as well as it keeps the sun out of my eyes.
All in all I'm pretty satisfied with the current kit out.