I am looking for a shotgun that can fill a few roles. I need it to be a home defense tool first. Second Id like to hunt grouse and pheasant with it. third, it would have to be 'gentle enough' for my wife to be able to pick up and use. I know there are alot of good ones for under 400 dollars, what would be the best option? 12 or 20 guage, company, barrel length and model, aproximate price.