The swivel screen is a nice feature - I remember the "purists" complaining bitterly when it was announced that the 60D would have it (I have an old SX 10-IS with a swivel screen - had it at that time, and always thought it was a plus....even with it's far smaller and lower resolution screen). I love my 7D but would like it even more if it had a swivel screen like the t4i or the 60D or any of the G or SX series Powershot cameras that have had it for a very long time.
I guess people who didn't realize how advantageous it is have come around and it's now considered a good feature. But it took a while (I don't understand why - it was never something that HAD to be used).
I also think the "flash commander" on the newer cameras that have it is a valuable feature - shooting off camera is so much easier - before, using my 40D I had to use a long e-ttl cable. It worked great, but was a pain to set up. And since my camera was not compatible with the older series I EX flashes, I didn't have on camera control...for whatever reason, the newer cameras (at least my 7D) is fully compatible with the older flash units and I can control them right from the camera....set ratios, set the "Master" to fire or not, etc. - even control the FEC of the "C" group - something the (worthless to me) ST-E2 can't do.
But the "scene modes" seem worthless to me unless you are a true beginner - and if you are "uprgrading" from and XT, that would imply you have at least a few years of experience using the camera.
There is not ONE SINGEL THING that the camera can do using the "scene" modes that you cannot do yourself if you know how to use the camera properly.
When I got my 7D it was a pleasure to NOT HAVE the scene moves on the dial that the 40D had...it made using the camera a bit more clumsy since I found myself having to take my eye from the viewfinder more often when changing from one mode to another. It also seemed to me like having a Ferrari with an automatic transmission -
If you shoot in RAW as you said, then you have to process your photos to at least some degree anyway. But the "scene" modes won't have an effect on what you have to work with - all they do is choose the proper shutter speeds and apertures. If someone doesn't know that they should use a faster shutter speed for sports than for portraits in a studio with the camera mounted on a tripod, then the "scene" mode would be helpful. But I'd assume anyone with any experience at all using an SLR (or any camera with a manual mode or even a shutter or aperture priority mode) should know what settings to use for each of the "scenes" - there's no magic settings you can't create without the "scene mode" and in fact there's no such mode on ANY of the cameras at the higher end...That doesn't mean you need to be a "pro" who requires a 1D camera, it really means that anyone who doesn't use the "green box" mode or the "P" mode should already be far beyond needing or wanting to use the 'scene modes" - it's really very much like using the "green box" auto mode.
If you know enough to use a flash to take a photo of a friend, relative, anyone when you have a bright sunset behind them, (and you want their face exposed, and not look like a black silhouette, then you know enough not to have any need for the "scene mode". It's really as simple as that.