Hi
I'm not sure if others do but I use a recipie from a Dutch friend and I salt the cucs, and de-seed. then I make a light white wine vinegar, oil and sugar dressing. It's one of my favourite (and easiest) salads. Or if I don't want to salt them I grate the cucs and then drain the excess water from them.
I also do a similar one but with rice wine vinegar and chillies and garlic and use that on fried noodles. Very yum
I don't tend to use sour cream much (lactose problem there) but do occaisionally use yoghurt to make an Indian or Greek style dish. So will have to remember your tip :)