Apple launched this new product yesterday
http://www.apple.com/ipod/ipod.html
It will be possible to download episodes of popular shows at $1.99 a pop
http://news.bbc.co.uk/2/hi/technology/4337692.stm
I've never been tempted with an iPod up until now as I've used a 512MB Creative for music - this new product may be worth looking at.