You might start here. get the highest power for the buck. the cal. will not matter, but you can carry a lot of 177 pellets in a small space. The spring rifles seem to be the least troublesome and have fewer moving parts.(single cock or break barrel)

http://www.sportsmansguide.com/search/search.asp?r=Page%3A+%2FDefault.asp+KW+Box&s=SEARCH&a=search&k=air+rifle

I might add try to get one that looks like an Air Rifle and not so tactictal.


_________________________
Some people try to turn back their odometers.
Not me, I want people to know "why" I look this way
I've traveled a long way and some of the roads weren't paved