I think you really need a clearer explanation of your goals for the project. I mean, it looks like it could be a neat time-saver, but I don't think I can customize it (I've picked my subscribed reddits carefully already), and it doesn't have the niceties of Reddit Enhancement Suite.
The point is you enter in your customised reddit feed link, the add the other accounts you have from other websites (EG slashdot) so you can have a merged, filtered, organised list on the same page.
Sagebump sits ontop of your different aggregator site accounts.
