Thanks everyone for all the input.
I ended up ordering a Gardall "microwave" style safe, (MS912-G-CK) This size seemed perfect for my needs, as I only have one pistol at the moment, and it gives me room to expand with a few more, and also store some more stuff in it. I also decided I may as well get a fire resistant unit.
I narrowed it down between the one above, a similar Mesa, and a First Alert. The Gardall seemed the best built, all were priced similar. I also looked at the Sentry's at Home Depot and Lowes, and while they would of fit my needs perfectly fine, they seemed like they were built like [censored].