It sounds like a good idea, especially the spreadsheet part. Being able to keep track of everybody would help a lot. Not sure how the mass poke would work on teamspeak though, I don't think it has the functionality. What you could do is use teamspeaks whisper function, it lets you bind a key to talk to a specific person, channel, or group. Or I guess you can just poke manually or create a script to do it.
edit: http://addons.teamspeak.com/directory/addon/miscellaneous-tools/Mass-Control-Module.html
found an addon that lets you mass poke