I grew up shooting a Sheridan Blue Streak. http://www.airgundepot.com/cb9.html
It takes 8 to 10 pumps and will fire with 1 pump for the little ones. Mine took thousands of squirrels, birds, rats, mice and Budweiser cans.
I have a Ruger Airhawk I picked up on a whim at Walmart. It was around $200 give or take. Good shooter but boy is it loud.