Here's the round version of the Gigantic Icon Set. Most of these are generic icons made from various sets, ie Leopard/Mac/Linux... etc. Most of the credit should go to the original creators of the base icons.
Icons can be used for UltimateLaunch, iFonz, etc., VGA and QVGA, formatted at 128x128, 72x72, 48x48, 32x32, 24x24, and 16x16. Most of the icons are named as I found them, so some might not make sense. If you go through them all I'm sure you'll find an icon suitable for every app you use.
Download the ico and png files here:
http://www.mediafire.com/?jm9xwjjjgmo