I already took a look at Tk::Fileselect (it was the first one I tried). But it fit's the specs not very good: it shows also files (I just need dirs), and it also doesn't have a drive selection, besides, it looks very unix'ish again ;)
Lars
While you may not like the style since it's "unix'ish", Tk::DirTree allows you to just select directories. It shows the directory structures as a tree (folders/subfolders). Doesn't show files either.