Thanks for the info guys. I didn't realise the mechanics that some of you have hinted at without actually describing, make a movie mode so difficult to implement.
I'll have to conceed I really don't understand the reasoning to buy a DSLR just because you have an aversion to multipurpose devices. or that it would become more popular, even common if it was available. That just strikes me as a bit snooty/snobby. However I'll admit I do generally subscribe to the idea that less is more, but there are situations when its more convient to carry one multipurpose device than 3 or 4 specialist ones. Obviously the opposite is also true on occasion. Such is life. Theres no need to make a song and dance about it.
I'm not a purist, and while I am looking for good quality shots I'm not a professional and I don't have aspirations in that line. I did photography in college as part of my design degree (many many moons ago) and my wife and I are very keen on photography. Primarily as means of recording life, but also because we enjoy good photography/images. The point regarding a Nikon D50 or Canon 350D is well made and perhaps a high end point and click would suit me better. I definately will consider that.
Currently we have an older Canon SLR a few lenses and a few 35mm point and shoot compacts. We rarely use them now as we have a Nikon 3700 which, while only a cheap point and shoot, it generally takes excellent shots, especially sharp. It also has a excellent 640x480 movie mode. Generally where ever we are when we want to take photos its a life event where we'd also like a bit of video aswell. More of a video snapshot of an event. Certainly we would have no interest in a video recorder. The main drawback with the Nikon 3700 is that its too slow, both in terms of shutter speed, and you really need to work hard to get the quality out of it. Its over sensitive to lighting conditions for example. Probably common complaints with any point and shoot.
Then again because we have the 3700 perhaps we don't need a movie mode on the DSLR. Thats also a consideration. One of our 35mm compacts is a Fuji and is very good. However I'm not impressed by their digital camera's S5000/7000's as to my eye the images seem to be noisy and soft. Indeed I prefer our 3700. It would be nice to have the pixels for a A3 or A2 print should we desire it, but we're most insterested in image quality. Our brother in law is a professional photgrapher and you can really see the quality of image that his equipment produces. I'm not dismissing that his skills play a large part in that. But I would like to get closer to that quality of image.
Thanks for the all responses thus far. I didn't think I'd get this much of a response.