What kind of self-respecting LondaaanER buys expensive Wellies?! :=p
Although the rain is just a civilised bout of spring, i would agree insofar as to say, keep you lebuttons for leparty. As a girl about town (as SATC would have us be) pragmatism is the height of city-chic. Joggers are fine besides which a woman looks her urban-best wearing whatevershewants without giving vogue the damnest. Wear whatever makes you comfortable.
Although I would suggest cardigans over shoulderpadded jumpers.
Best of touristing 2k1!
edit: I have the single most droolworthy shoulder padded jumper. But it is pure wool and pure winter FAB. Just in case people thought I discriminated needlessly against the era that spawned MC-Hammer and his fabulous parachute-pants.