I manage 11 DS servers, and after finding Darren Collins' fantastic DS Job Search tool, I added a feature that lets you choose from multiple ODBC connections. Now it's much more streamlined for my use. I figure since I'm probably not the only one with multiple DSs, I'd share it with you all.
Doesn't need to be fancy...
Searching to find a job but don't remember which DS you put it on? Just click a different database and click search again - no need to retype your search string every time.
Modifying this file to work in your environment is a piece of cake. Open the file in a text editor and scroll all the way down. Change the VALUEs to be the system DSN of your ODBC connections, and the DS# part to be whatever text you want. Format however you want using basic HTML.
Rename the attached file by removing the _.txt from the end and enjoy!