Since I just had the scare of my life with Vlad, I found these links that might be useful for all of us in case our little ones ever need some quick emergency help.
I just found this step by step:
How to save a choking cat
Here's another good one. This one has a short video.
Heimlich for your cat
Here's one for dogs. Looks like pretty much the same info.
Heimlich for your dog
This page has some CPR info as well for both dogs, cats and birds!
CPR for your dog, cat and bird.
This page has a PDF you can print with pictures. I copied it so I can email it to whoever wants it.