If you're using OS X in a work environment you are probably dealing with external drives that are formatted in NTFS. OS X 10.6 (Snow Leopard) can read NTFS drives but cannot write to them. Fortunately there is a simple and free solution to fix this amazingly annoying issue. (Seriously, Apple...NTFS has been around for more than a decade...)
- Download and install MacFuse 2.0
- Download and install NTFS-3G
That's it. I'm running with the default settings. It's worth noting that there is a commercial version of NTFS-3G that reportedly is much faster, but for USB 2.0 drives I'm finding the free version totally workable.
Thanks to Faisal for the pointers.