Here's a good place to start that gives you the required modules and some "in case you need this ... " scenarios: http://www.ubercart.org/docs/user/701/installing_drupal_modules

I think maybe a "recommended feature modules" addition to the handbook would be a cool idea.

Also, Ryan, you misspelled "Repeater" on the "Installing Ubercart Modules" page. It's missing the last "r."