Recommend me some good Brushes!!

I need some recommendation of brushes for my Adobe Photoshop CS3.
Can someone help me?
A brush with some screenshots is encouraged. :)
Oh..as well the links...
Thanks!!

Try the brushes here: :)http://browse.deviantart.com/resources/applications/psbrushes/-Their previews are there as well, I think.

To be honest, the only brush set that you will ever need, for photoshop are: Splatter brushes.They work wonders, but usually, PSCS3 has some really good default brushes, and you can customize the brush settings and make some really awesome works.