Looking for a search engine for message boards

[adamdnd]

Hi,
So I know that Google has a discussion search feature, I am also familiar with Boardreader & BoardTracker - both are fine, but I am looking for a search engine for forums that I can:

1. Filter results by time frame
2. Filter results by number of posts & users
3. Search only in specific forums (like on fashion related forums)

Does anybody know if such a service exists?

Thanks,

Adam