Here we go;
I was upgrading from a Nikon D70 and was torn between the Rebel XTi and a Nikon D80. Although the CMOS sensor on the XTi does indeed handle high iso noise better than the Nikon counterpart, there were a few deciding factors that led me into the D80 over the Xti.
Why the D80?
- Larger Viewfinder. Look at the two side by side, its a HUGE difference. With my poor eyesight, the larger viewfinder really helps me tell if the focus is spot on.
- Build Quality. The XTi, while nice, felt a bit like a toy to me, didn't immediately make me think it would last a long time like feel the Nikon's instill.
- Size. The XTi would be great for someone with small hands, but for me it was uncomfortable to hold. My right hand actually started cramping up from holding it a few minutes. I may have gotten used to it, but the D80 felt more natural and balanced.
- On-Board Commander. The Xti, while $200 cheaper, lacks the ability to control a wireless flash out of the box like the D80 has. You need to purchase an additional flash for $150-200 just to be able to go wireless, basically negating the cheaper body price. (for me at least)
- Grid display in viewfinder. For me, this was a big one. I am horribly bad at taking "straight" pictures, and with the amount of landscape shots i take, the lack of a viewfinder grid on the XTi, which i had gotten used to on the D70 was a killer. I didn't want to deal with cropping every picture I took just to get it straight.
In the end, i couldn't be happier with the D80. Its a very worthy upgrade from my D70, larger viewfinder, better sensor (MUCH MUCH better than the D70 in high iso noise), slighly smaller frame (but not too small for me like the XTi), 11 AF Points, built in commander mode, and lots more.
Don't get me wrong, the XTi is a great camera, just not for me. Many of the points i noted above were just personal things that helped me decide.
Go to a BestBuy or Ritz/Wolf and try them out side by side.
BTW, if you can work it at the right time, the price difference isn't so huge...
The XTi was $612 + tax for me while the D80 came down to a little under $750 + tax