I have the Panasonic Lumix DMC-LX5, and I really like this camera. I paid more than $300, but that was a couple years ago. If you're thinking about possibly getting an SLR someday, it's a really nice lead-in. The controls are very similar to an SLR, and it allows you to shoot in raw format. It also uses Leica glass, which was a nice bonus, because it's less than half the price of the equivalent Leica camera with nearly identical image quality. Additionally, you have a hot-shoe mount, so you can use hotshoe or external strobes. Panasonic also has some nice removable lens mirrorless cameras with APS-C sized sensors, but those are going to get a little pricey, especially when you factor in the cost of the lens(es). My next choice would probably be a Canon G-series camera. You're probably looking at closer to $400 to start, but you could probably pick up a used older model for $300. For used equipment, I like shopping through a reputable dealer like Adorama or B&H Photo. You're going to pay more than Ebay or some online forum, but it's easier to get a refund if it's defective, and I'm a bit more confident on the condition of the equipment I'm getting.