I am trying to manage both SQL Server and MySQL from a single interface is that possible with TOAD?
I believe there are two different flavor you have to download and installed for the same, personally, I have tried Tora and Database.Net - both are good with some limitation. And, both are freely available from sourceforge.net
There is Toad for MySQL and Toad for Sql Server, both are for free.
Though there is a paid version for Sql Server with superior features for DBAs and DEVs - you can try trial if you are interested in.
here are the links for freeware: