Mining other people's twitter followers

[Rooftop]

This is another of my "does this tool exists" posts.

I have a twitter account that is very closely related to one that already exists.  I'd quite like some of their followers following my new account.  Not all of them though. I'd like to filter out ones that have identified themselves as being in certain locations, haven't tweeted in a long time etc.

Does anyone know tool that would let me get a users's 400k followers, filter out the ones I don't want and then sort the others by followers?  If need be I'll pay some subscription to avoid doing this through the API and excel.

[Rooftop]

answering my own post here just in case anyone is looking for the same later. Tweepi is the closest I can find. Slightly moronic interface, but sort of does it.

[ukgimp]

I use tweepi. Get the pro account. £8 month.