I got a new pair of Dockland Sports boots the other week and found them really good. Although they are not w/proof, I think they are quite cool and to be honest I only use my bike for about 20-30 mins a day (during the week), so they are perfect. 
One problem I did find with then was when wearing them under my trouser legs they were rubbing at the top. After speaking to a few people, I found that this is a common problem. 
So I did some ‘testing’ and found that the only good thing to stop this was a box of ‘Tubifast’. Basically it is a elasticated tubular bandage that slips onto your leg and cuts all of the rubbing out! Plus it only costs about £6 for a 5m roll!! Pure quality! 