A to Z of Tennis is good if we're including our Kiwi neighbours...but it's up to the mods I guess.
If all else fails, Tennis Australia suits me fine. Why ruin a good thing. As long as we don't change to a lame ass Aussie cliche title, I'll be happy (i.e. the Crocodile Chicks. Meet Molik's Moccassin Wearing Army, Evonne's Emu's et al)