I’m really happy with my 20D.
That said, they are coming out with the 50D, which in my opinion, looks like it has some great added features, that would make me want to upgrade. I’m not one to jump right into a new technology. I usually like to wait a few months, read reviews, and see if the upgrades are really worth it. The 20D was replaced with the 30D, and then the 40D, but neither of these upgrades made me excited about possibly running out and buying a new one. On paper though, this 50D has some really promising features.
1) Digic 4 processor. I currently have the Digic 2
2) ISO 12800 capability (hopefully with improved noise reduction) I currently have 3200 max
3) Three dust and self cleaning features, currently for me… none.
4) 15.1 Megapixel, currently I have 8.2
5) Live view mode. I know there have been some complaints about this, but hopefully improved with this model.
Those are the few points that really stuck out for me. There are a lot of other features that are light years above mine. I’m not unhappy with my camera, and quite frankly I’m hoping they’ll come out with an updated 5D (6D?) that is full frame, with basically the same overall upgrades of the 50D… then I’ll start saving my pennies for a new camera body.
In the meantime, I’m still looking at lenses and drooling. 
Oh, and also the 1Ds Mark III. I’ll put that on my wishlist just in case anyone feels like dropping some coin for it! :-}
Gear junky.
Laura
by Juha Ylitalo, on August 30 2008 @ 11:06 am
Last November I bought 40D to go along with my older 20D.
One big question that you have to decide is whether you are replacing 20D with 50D or are you going to keep 20D as backup camera.
20D’s resale value is pretty low, but it makes nice pair to these newer models, even though menu system in 40D (and probably in 50D as well) is different from what you’ve got used to in 20D.
With my two cameras, I normally use wideangle lenses in my 20D and tele lenses, which can benefit from faster AF, on 40D.
The big question for me is whether I am going to use these cameras until shutter breaks from one of them or whether 5D replacement (once they make one …) is going to be so good that I “have” to get one.
Juha Ylitalos last blog post..Wheels on Cannon