If your team isnt opposed to addons in general, it might be a good idea to have them all download weakauras and macrobank - both are great addons and both enable quick and easy sharing in-game.
There are some addons that show what "raid cooldowns" you have avalable which might be useful but are not exactly mandatory, and you and your raiders should get a feel for coordinating those abilities on your own without the raid leader having to monitor and call for them.