Ok, I decided I didn't want to infringe on someone else's thread.
A while back (about 3 months ago, I wrote a perl script to inform me when there's a new PSP firmware update available.
I've updated it to display on the web pubically.
It will check all 3 regions and provides download links to the latest firmware.
Ok, here it is: http://www.psphacks.net/cgi-bin/
It'll auto refresh itself every 15 minutes.
Let me know if anyone wants any extras or niceties.
By the way, for now, it reads "no data" on the download link because no firmware updates have been released yet. There's nothing there.
Cheers
Pikoro
http://www.psphacks.net/