URL Forwarding and CodeIgniter

[eluser]Eric Cope[/eluser]
I need to forward a web address like this:

Code:

http://homesite.com/some_text

to this

Code:

http://homesite.com/CI_class/CI_function/more_data

At first I thought to use .htaccess rewrites, however the list of possible values of some_text will be growing/changing/shrinking. That means I would need to regenerate .htaccess every time the list of some_text changes, which does not seem appealing. Does anyone have any ideas?