Diet Rite IS Caffeine-Free [as well as Sodium Free.]

In addition, if you don't mind Caffeine, there's also Diet RC [which is virtually impossible to find, but exists,] and Clover Valley Diet Cola. The Clover Valley is dirt cheap [$0.50 for a 2 Liter and $2 for a 12 Pack] and easy to get [at least on the East Coast.] They sell it at most if not all Dollar General Stores.

http://www.dollargeneral.com/

Here's a list of products made with Splenda, but that doesn't garuntee they don't also contain other stuff we can't have: http://www.splenda.com/library/asse...withsplenda.pdf