If 90% of your traffic is organic, I would think twice about trading it. It's almost guaranteed that you'll be sending higher quality traffic than you're receiving. Maybe just some hardlinks rather than skimming your video links?
I guess it depends on quantity too.
Most scripts have a free version that skims x% and a paid version that lets you keep all of your traffic. I know a bunch of people are jumping on the trade expert bandwagon -
http://www.tradeexpert.net
There's also trade pulse -
http://www.scriptpulse.com/
and of course arrow trader -
http://arrowscripts.com/