They're just what you've been waiting for - or not: Griffin's $50 alternatives to Apple's $50 iPod AV Cables for 2007 and later iPods. The Component iPod to TV Cable and Composite iPod to TV Cable are functionally identical to Apple's Component and Composite AV Cables, though labeled only for the iPod nano, iPod classic, and iPod touch, and bundled with bulkier components: the old version of the USB-based wall adapter PowerBlock, and cables that aren't…