In a pump, look for a nice Sheridan Blue or Silver Streak. No longer made so used is the only source. For a springer, don't fall for the high velocity Chinese junk. I would highly recommend the Weihrauch HW50S or HW95 in your price range.

These guys have a good price right now on the HW95
http://www.airgunsofarizona.com/Weihrauch.htm

Charter Member
Ancient order of the 1895 Winchester

"It's an insecure and petite man who demands all others like what he likes and dislike what he dislikes."
szihn