In terms of targetting feeds at individuals RSS is a solution looking for a problem. Feed readers are just one too many bits of technology for the non nerd to play with.
If you have sites that would like to display your content then feeds are a good idea and you can probably find software to send a feed to Twitter which may pay off.
If you have a low volume of items in your feed then it is pretty easy to create the XML manually. Going beyond that will depend to an extent on how you built your site.