The headsets are free - but bring your own.
Beyond that, it's your choice. Youi get the Wild Blue Yonder Channel for free. It's fun, and excellent for short flights - PHX
You pay $5 for DirectTV (24 Channels) and $8 for first run movies and Disney. Take your pick for the longer segment.
And keep your eyes open - you might be lucky and get a flight attendant called Travis - he posts here on A.net.
[Edited 2005-09-19 08:37:45]