I found a used 20D on craigslist for $550 with vertical grip. I forgot to ask if it was a Canon vertical grip. What he did tell me is that the sensor was cleaned about a week ago, he's selling to upgrade to a 5D, and he's the second owner. There is also a small mark in the viewfinder, but it never appears in pictures.
I'm trying to decide if I should make the jump, or save up for a 70-200 f2.8 lens instead. I figure I can probably sell my D60 to recoup some of my costs.
Right now, I mainly shoot my family but in a few years I want to be able to shoot my son playing sports. One of the big things I want with going to the 20D is to be able to shoot in ISO 3200 for when he plays ice hockey.
I'm still a beginner and I've got a lot more I can learn with my D60, so I wonder if I should wait, buy better glass, and get a used 30D or 40D in a few years.