I have been wanting to for a while now, learn how to program my own wordpress plug-ins. I am aware that you need some knowledge of PHP and other scripts, but is there a way that you can learn to program your own plugins over time?
Well yes. Wordpress.org has some useful links where you can learn how to make your own plugins. Check here: http://codex.wordpress.org/Plugin_Resources Hope that helps!
You can find plugins like one you want to create, install it and try to modify right in /wordpress/wp-content/plugins directory. It is best way to start creating own plugin.
You might want to check these two sites: http://randypeterman.com/wordpress/2004/07/05/writing-a-wordpress-pluginpart-i/ http://www.digitalramble.com/2006/06/06/34/ You'll find there 2 simple tutorials
I found this series from DevLounge to be quite helpful: http://www.devlounge.net/extras/how-to-write-a-wordpress-plugin