Brent, 40D has live view
http://www.dpreview.com/reviews/canoneos40d
it also has 14bit conversion as opposed to 12 bit in 20D, bigger pixel count and a larger LCD screen.
They come up a fair bit now on ebay as 60D starts to grow their market, hopefully their prices will come down a bit in NZ, but it's always risky buying things second hand of course.
Bo