We have been using the document status webpart from Microsoft, which has been
working great.

I was wondering whether there was a similar webpart which could display the same
data, but then for the entire workspace. Possibly also with dates attached to
each document so you can see how long a document has had this particular status.

This would be handy as there are alot of documents on our portal which have been
checked-in/out or waiting for approval for ages, and are just taking up space.

I guess the doc status webpart could be modified in order to search the entire
workspace. However, I have very little programming skill, so I really wouldn't
know how to tackle it.