I'll chime in on the Canon side.
I purchased a 60D in time for the 2011 holidays. While it's not a "full" frame DSLR. It works just dandy for family pics and model trains. If you're going to shoot pro...sure, the higher end models are all great.
I chose the 60D as a compromise. Faster frame DSLR than a T3i (consumer model) and not as pricey (~$850) for the body alone from the local pro-photog shop.
I use a 24-105 "L" lens for it. Definitely a great outside lens but I have to really work all the settings to get decent indoor shots. I'm looking at the 24-70 L for more ideal indoor pics as it captures 4X the light prior to the camera seeing it.
As for pics. For my pro-sumer abilities...fantastic.
I'll also add...the modern DSLR's can also shoot HD video. Most if not all already discussed on this thread will capture at 1080p at 16X9 which is as good as it gets presently. My video clips are wonderful and you get access to all the lens and apature settings in real time while you capture.
Is it perfect? No. The CFO thinks it's way to heavy and complicated for her. She's more of a point/shoot/compact user. But, in a pinch she'll pick it up and use it on auto-everything and smile when she see's the images.
Capture cards...I purchased a 64GB (gigabyte) card for $80. The newest of new generation cards greater than 32Gb are known as SDXC cards. Whether you choose to connect your camera to your PC to download images and/or, insert the capture card into a SD card reader...the computer AND the card reader BOTH need to know how to read SDXC. When I tried mounting the card on a new Mac laptop, it didn't know how to read it. Doesn't mean an update isn't available...but we were remote and couldn't check at the show. My Windows 7 PC did out of the box. Windows XP will need an SDXC software update to read the card.
How many pics can I capture on 64 GB? 5,000+ JPEG's at maximum quality.
That same card will capture up to 1.5 hours of full HD video if the card were completely empty. As for shooting RAW images...haven't tried. Not interested (yet) as I get used to using it. Guestimate 1,800 RAW images because the camera is an 18 megapixel unit.
Lastly...HDMI. I can plug the camera directly into my/any HD TV that has an HDMI jack. You will need to buy a mini-to-standard HDMI cable (not micro-HDMI!). I keep it packed in my bag so I can plug in anywhere there's interest to see what I shot on the big screen. The camera will do slide shows as well. So you too can sit back and enjoy. :-)
Oh, yes, I agree with Don (scalerail). I purchased a UV lens filter (protector) for the main "L" lens. Not cheap at $75...but a lot less than a new "L" lens!