Box.net is an iDisk-like service that allows you to mount an 'internet hard drive' on your desktop (they offer both free and paid accounts). Great for easily and securely backing up, syncing and sharing files between computers. Previously, they apparently only offered a client for PCs, but UNEASYsilence has published a simple tip for logging in and mounting your Box.net account on your Mac OS X desktop - no extra software necessary. Using the simple power of the Go > Connect to Server menu from the Finder, you too can have your very own WebDAV online hard drive. 1 GB is free, while 5 GB is $4.99/month, and 15 go for $9.99/month. Enjoy.
iPod.iTunes offers 8 different ways of synchronizing your iTunes library and playlists between both devices, giving you powerful control over what files are moved where and how. All formats are supported, including MP3, AAC, protected AAC (iTMS purchases), Audible books, and video files. PC-formatted iPods are compatible, and all metadata such as your song ratings, play count and album art are preserved in the transfer. This is a great utility for anyone in need of an easy method to clone an iPod, keep iTunes libraries on different Macs in sync or simply back up your iPod's library if it's the only place you keep all your media (Apple sadly doesn't provide a way of doing this).
Non Stop Mac has
put together an ingenious how-to on creating an 
