Our current Nikon Coolpix aren't bad, but we mainly got them because they are water and shock proof. I would use them any day over our iPhone 4S or probably any camera phone for that matter. I work in cellular phone design and I'm a life-long amateur photographer, so don't try to convince me that your phone camera is good

However, the camera body is important, but most important is the lens. I know you said expensive, but how "expensive" are you really willing to go. It's really relative. We recently bought a new Nikon body, 3 lenses, and a doubler, which came to about $10,000

I was actually a little shocked by the price too. I am ecstatic with our choices though and would do it again in a heartbeat. Here's a bad pic with a bad camera; I couldn't take a good pic without the good camera
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We got a Nikon D810. The D750 was our second choice. For lenses, we got all Nikkor. The AF-S 24mm f/1.4 is a single focal length and no vibration reduction (VR). It's the night/low light lens. This is the lens that you want if you want to take pics in Haunted Mansion or Pirates without a flash. The AF-S 24-70mm VR f/2.8. This is the good all-around lens. It works during daylight and indoors and low light without a flash. I use this most of the day. The AF-S 70-200mm f/2.8 VRII. This is the telephoto lens that you use on the Kilimanjaro Safari. We have a lens doubler too that lets us go to 400mm with the telephoto lens. Definitely, go to the photo forum and go to a good camera shop and talk to them and handle the merchandise. A reputable shop will sell you something to meet your needs and budget. Good luck and have fun. Be sure to take a class or buy a book to get the best out of your equipment.