I am beginning to test some code I have written to pre-configure a CPANEL based website to auto-install bbPress. Barring any extreme problems (or unforseen events in my life) I should have an early beta to test by the weekend.
It will only require a few simple inputs such as your username and password (same as you'd use on FTP or cpanel access) and from there it will do everything - create the database and tables, download bbPress, install it and take you to it's configuration options.
It may be possible to eventually get it working with other types of hosts. I plan to investigate doing it on dreamhost and perhaps a couple of the other most popular hosts.