Freeware

MobileVideo For iPod  is a free video conversion application developed by keronsoft. It allows you to convert your regular PC video files (avi, mpeg, etc) into the proper video format that your iPod understands.
MobileVideo For iPod provides an easy and completed way to convert all of the popular video formats to ipod Video such as converting AVI to iPod, MPEG to iPod, WMV to iPod. No program supports so comprehensive video file including AVI, MPEG, WMV, MOV, MP4, RM, RMVB, DivX, ASF, VOB, 3GP, etc. In  adding , MobileVideo for iPod provides a powerful way to convert popular audio files including WAV, WMA, MP2, AC3, RA, M4A, OGG, AAC, etc. to iPod supported MP3 formats. All conversion processes are very fast and easy to handle

HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded DVD to MPEG-4 converter, available for MacOS X, Linux and Windows.

Supported sources:

• Any DVD-like source: VIDEO_TS folder, DVD image or real DVD (encrypted or unencrypted, but protection methods other than CSS are not supported and must be handled externally with third-party software), and some .VOB and .TS files

• PAL or NTSC

• AC-3, DTS, LPCM or MPEG audio tracks

Outputs:

• File format: MP4, MKV, AVI or OGM

• Video: MPEG-4 or H.264 (1 or 2 passes or constant quantizer/rate encoding)

• Audio: AAC, MP3, Vorbis or AC-3 pass-through (supports encoding of several audio tracks)

Floola is a freeware application to efficiently manage your iPod or your Motorola mobile phone (any model supporting iTunes). It's a standalone application that can be run directly from your iPod and needs no installation under Linux, Mac OS X and Windows (Windows Vista is supported). Floola supports all common used iPod features including artwork, podcasts and smart playlists! It's also able to convert audio or video incompatible with the iPod so that you can copy almost any file to it. It even allows adding youtube and myspace videos just entering the page url!

The best utility for getting lyrics on your iPod is now Mac friendly. Canto Pod X offers user the ability to search and donload lyrics to their iPod and iTumes library at the stroke of the key. Available for Mac OSX 10.4 and Windows