@Frankenmauser: I apologize for piggy backing your comment about athlons and vortexes, but you were so spot on that I had to "second" your opinion.
The original poster can get an Athlon Neos, 3-9X, 40mm obj for 100$ from MidwayUSA. A decent scope for the money. My only reservation is that the lower end Athlons seem to be a bit heavier than other scopes in a comparable class. However, and extra ounce or two shouldn't be an issue at the range or for hunting conditions in Pennsylvania. Also as previously mentioned, 100$ can get you a 9-3X, 40mm Hawke (Hawke Sport Optics). You can get a Hawke with a parallax adjustable objective, which would allow you to use it in the future on a .22 rimfire. Another scope to consider is a Burris Droptine, 9-3X, 40mm. It is 40$ over the budget, but if I could scrape together an extra 40$, then the Burris would be my first choice. If the budget is still limited to 100$, then the Athlon would be the choice.
@Nathan: I agree with you about dovetail rings. I'm in the process of switching mine out. Oh...and don't apologize for using quality, but cost effective optics. Not all of us, (myself included), can afford Meopta of Kahles scopes. After you reach a certain price level, the benefit versus cost ratio starts diminishing.