Bolt Action .223 or 7.62x39
Look at Savage's website. If you want to take squirrels and whitetail I recommend their 7.62x39 bolt action. It can drop a deer, but won't destroy a squirrel completely. A .223 will drop a deer if you can really hit a vital area or maybe get it in the brain, and is an excellent varmint cartridge. Also a 22 hornet isn't a bad idea, Savage Arms makes excellent 22 hornet bolt actions. Let us know what you decide on!