How can I find a place to live in Leipzig?

I am moving to Leipzig in a couple of months from the UK and am in search
of
ways to a flat in the city. There are a lot of websites for tourist
accomodation, but does anyone know of any sites that have a searchable
database of flats AND/OR shared accomodation.

Please reply to the newsgroup as my reply email is for spammers to come up
against.

Thanks in advance,

Gareth