I currently have a a Canon Power Shot SX60HS. Over the last couple of years, I've started to getting into photography more and I feel like I'm starting to test the limits of my camera and I'm looking to upgrade. I've been doing research on DSLR's and mirrorless cameras and I'm getting a bit overwhelmed by the options and I would appreciate some guidance. What camera and lense(s) should I look into for landscapes and wildlife photography? I don't have a problem with purchasing used gear. In fact, I would prefer to purchase a camera that was top-of-the-line 2 to 5 years ago rather than a new entry level camera. I would like to keep the purchase around $2,000, but I could push it to around $3,000. Any assistance would be greatly appreciated.