OT: Any web based report delivery software that support R out there ?

I'm looking for something, but I'm not sure quite how to describe it, so 
maybe the list can help.

I use R to produce several different reports using database > ODBC > R > 
Sweave > pdf report.

Ideally I would like to be able to upload the report 'templates' to a 
web page, and allow users to request them to be run at certain times 
with certain parameters, and pick up the resulting reports once they've 
been executed.

Is there anything out there like this ?  I have seen a propriatry system 
called Pipeline Pilot by Accelrys that effectivley does this.

Regards,

Paul.