Webportio is a website that offers 100+ free graphic resources for Adobe Fireworks (the collection is growing regularly).

Items include buttons, calendars, forms, ribbons, sliders and many other ones. They are very well-categorized so you can find a specific object quickly.

Webportio

All graphic files are vector-based which makes customizing easier and have a good structure of layers.

Even if you're not a Fireworks user, resources can still be handy as they come in .PNG format.