Yeah the Pro 1 is a new camera with that 8MP CCD. I was considering it for a short time, but found that there's some sort of glitch with the battery life on it. Apparently the camera will only pick up something like 2-4 hours of life on the battery when there's supposed to be something like 10. It's a solid, advanced point and shoot camera from my point of view.
As the other guys have said, there's quite a few advantages to the EOS. Interchagable lenses provide more I guess mobility. Fully manual operation, so you can choose what kind of shot you're looking for. And plus, being an SLR, it should last and hold up quite well over time and it should't become too dated quickly.
Personally, I considered maybe getting an SLR, but I feel I'm not a good enough of a photographer yet to go for full manual control. So I decided to go with the Olympus C-8080. The only slight problem with it is that again, a fixed lens, so I won't be able to get those great telephoto shots. But the again, the good thing is that with 8MP CCD, this will give more room for editing and what not of the pictures. So as I said, I went with this because I'm not ready for a full manual camera. I'm still quite an amateur phtographer, unlike some of the guys we have here. I can only wait and watch until my photographic skills get that good. But yeah, I'm happy with the purchase because we were able to find it for a pretty good price.
Either way you go, I'm sure you'll be quite happy. Both the Pro1 and the EOS are good options, and I'm sure they will be able to fulfill your needs.