I'll add my camera thoughts...
My wife and I are point and shoot only, no fancy f stop changes or using multiple scenes, no RAW shooting, no post picture photoshopping etc. We have young kids so we want INSTANT ON AND READY TO GO. We also want no lag when you push the button. This also is very important when shooting moving wildlife, fish, etc. Also when shooting multiple shots of a moving bird for example, it is nice to squeeze off photos as fast as you can push the button. Some cameras offer a 'burst' mode to shoot 30 shots in a second or so which can help as well.
WE need long zoom with good image stabilization to be able to catch action that is a little off in the distance. We didn't want exchangable lenses.
We were OK with a little bigger camera body size rather than the ones that slip into your pocket.
We have always had canon cameras but probably didn't tap a tenth of their real potential.
We had a SX1 which was great, but we wanted the new DIGIC processing power as they went from DIGIC 3 to 4 to 5. This gave better low light pictures and prevented the 'noise' in the pictures amongst other improvements. The SX1 was heavy due to needing 4 AA batteries.
About a year ago we traded up to the SX40HS. We love it. Better processing and low light pictures, awesome and SMOOTH HD video clips with stereo sound (stereo mics helps a lot!) We have a lithium battery pack that is small and takes lots of shots. For about $5 on ebay I can buy some extra battery packs and I never have to worry about running out of juice and carrying AA batteries with me. Zoom is awesome, performance is great.
If you need about everything you could want in a camera for both 'just turn it on and push the button' and later all the manual controls, this wouldn't be a bad place to start.
About $350 new yet, but I imagine on ebay lots of refurbished and used ones for less.
I recommend you get the optional AC adapter which goes into the battery compartment. This is nice if you have it on a tripod and are doing prolonged video recording or if you have it set up to capture birds on a feeder and want to keep it powered on all the time ready to go.
Lots of reviews here:
http://www.amazon.com/Canon-Digital-Stabilized-2-7-Inch-Vari-Angle/dp/B005MTMFHUThey next camera up from this, the 50HS has better zoom but many reviews say it was a step back in terms of ease of use and some other unwanted changes. I have not tried the SX50HS as we don't feel we are lacking in any features.
One problem many with canon cameras still face is that the H.264 compression coded that they use to record the video requires SERIOUS graphics card horsepower to decode and play back on your computer. Most older computers, most laptops that have onboard graphics capability only (and not a stand alone graphics card or chip) have very jerky playback with audio not syncing with video. This makes it a pain to deal with the video clips when all you want to do is load them in your computer and watch them. Solutions range from buying expensive new computers, buying expensive software that attempts other ways to decode the video (professional video editing software), or to take every clip and downgrade it to lower quality video (say DVD quality) which your computer can play easily.
For a long time we couldn't play back our video clips and I didn't want to downgrade them all to DVD quality and then play them (double work) So eventually we got a computer with higher end graphics capability (we happened to get a new mac mini) and now they play back smooth as silk.
This is a down side but the downside comes out of the upside that the camera can pack so much data into those videos that the computers groan under the load of unpacking nearly 10MB/sec of data and displaying it on the screen on the fly with no delay or hiccups!
I don't know much about Nikon, panasonic, and other brands but I'm sure they have equally good cameras as well.