Hi. I have been looking for the same kind of thing. I want something that will list all available modules (News, events, entire site, forums) and so on and let the person doing the search decide on what they want to search on. How possible is this to do? And how easy is it?

I am not sure, if users know by default, where to look for expected results (why does Google offer by default a text box only ;) ).

However, it should be easy to extend the search results module to add a page/module selector. (option to adopt it to your needs is a major advantage of Open Source Software).