I'm in the market for a new (or used) DSLR. It'll be my first and I'm having a little trouble finding some options that will work best for what I want. I'm not too picky on brand, but I'm looking at entry-level to mid-range. I have no intention of doing anything in a professional capacity. This camera will mainly used during horse shows and riding lessons at the barn. So, there will be natural light (sunny and cloudy days), low light (arenas), dust, action, people and horse subjects, and distance. Something easy enough for my husband and I to both use competently would be great. I've owned Sony, Olympus, and Canon point and shoots in the past. Currently own Canon P&S (technically, it's my husband's). Any ideas or thoughts on where I can start?