Update to Drupal 5.1 complete. We hope.
Some modules I use aren't available for v.5, so let's see how it goes. I might shift back to 4.7.6.
More update.... It took some doing to get the image toolkit working. After installing the image module, trying to change that setting would show me that there were no toolkits avaialble, so drupal would use it's built-in GD. Of course that didn't actually happen; no toolkit was used, so trying to upload an image resulted in no thumbnails.
I had to move the image.imagemagick.inc file from the image module directory to the drupal/includes directory, and then change it in two places to point to my provider's install of ImageMagick: In the image_imagemagick_settings() function, and also the _image_imagemagick_convert() function. I got the proper path by typing 'which convert' in the shell. Some folks have reported needing to recompile ImageMagick with certain options. Thankfully that wasn't required here.
Needless to say, this is not the ease of use I've come to expect from drupal...