ext2/3 on USB?

[Mark Jarvis]

FAT32/vfat is commonly used for file systems that need to be used by 
both Windows & Linux, but it will not handle some Linux constructs like 
symbolic links.

Can a USB drive be formatted for a Linux specific file system such as 
ext3 or ext2? This makes good sense if a USB drive is to be used 
exclusively on Linux systems.

Has anyone done this successfully? I could try on one of my USB drives, 
but I'm chicken and don't want to take the chance of nuking it.

-mj-