I love the name Pet Talk, and I would hate to change it.
But if it has to be, ok.

I dont know if these are taken but here are some suggestions,

Pets Are Us...
All about Pets...
Our Pets.com...
Pet Lovers.com...
Talking pets.com...
The Pet Forum.com...

Just some suggestions.
But I really like Pet Talk.
Keep us posted .
Have a great day everyone.
Just me...