Everything about personalizing your PSP

Ok, i just wanted to make a post which lists pretty much everything you can do with your psp. This is for my benefit aswell, so please list all that you know including instructions, sites, whatever.

To start, all i know is:

Changing backgrounds:
http://www.psp-hacks.com/pspersonalize-howto.php

Then theres the obvious things like loading ISOs and play emulators, what else can we do>?

E.g. is there any way to add sounds when browsing the menu and stuff?

most of the tutorials are scattered in the forums and i think if you really wanna start something then contact the admin and get him to put up these tutorials in the tutorials section. also try to garner support for your cause. PSationP's a great ferret and theres others too...

Well, what would you like me to start with? What you found just changes the background of a 1.5 PSP. And you can listen to music while you switch through all of the menu, like going from games to movies and all that.

im just looking for simple things to change with the menu anything really. The music playing while browsing would be pretty cool?

Yeah, all you have to do is like click o when you are listening to music, and then you can move around on the menu. And you so do want to change your PSP background. Then I would go with flashmod, to remove the wavy lines, or the PSPersonalize above!