Since you have an XTi and it takes photos that are as good or better than the 30D, why not be patient a bit longer? While you might like the ergonomics of the larger body, will it really make that big of a difference after you actually have it in your hands? (And won't you have this nagging little feeling of "I wonder if 10MP might have made a little difference?)
Some folks get the battery grip for the XTi and XT to make the package a bit larger.
jvarszegi wrote:
It's unlikely that the 30D replacement will have the sensor from the 400D. If that were true, the replacement would surely have been released already. It's not in Canon's best interest to degrade low-light performance of the sensor in order for a meaningless megapixel rating boost.
I beg to differ. I would argue that it's highly unlikely for Canon to waste a brand new 10 MP CMOS sensor design on only one model. Based on Canon's history, they will milk that technology for all it's worth.
How many times did Canon re-use their 6 MP CMOS sensor for different EOS models? And their 8 MP sensor? By my count, they reused these sensors for three succeeding EOS models apiece. Unlike Nikon, Canon invests a lot of R&D resources into developing their own sensors. They can't afford to simply abandon the fruits of their labor after only 1 camera... unless the sensor itself is prohibitively expensive (ie the 1D/1Ds series sensors).
