I would like to know how I could something like this:

I would like to compile a list of all the RSS feeds I want to keep track of into 1 feed. From this combined RSS feed, I would like to manually delete items in the feed that I do not want. This cleaned list would provide me with great content for my web sites.

Please note that I am not looking to use something like a RSS feed combiner with filters like Yahoo Pipes. I was thinking of something like a Gmail inbox where I could check my unwanted items and delete them.

Any idea how I could so something like this? Is there a PHP script or service that can do this?