97828 rss aggregator

Hi, I need a php program that I can use to pull rss feeds from whichever sites I please and store them in a mysql database. I then need to be able to pull that same data from the database and render the the entries to the screen by their pubdate - I want to be able to fully control the amount of listings shown, or control the timerange shown based on the pubdate. I guess the rss urls should also be stored in the database so there'll need to be a table for that also. I want the results page to be totally style independent and want all style elements in a separate stylesheet. If there is a script out there which already does this and can be installed quickly then I will pay to have it installed. Otherwise you can quote for writing the whole thing.