Does anyone have any experience with water proofing a IPod Touch 2G for Swimming?  Otterbox, or anything similar?

I'm not actually swimming, but swim jogging as cross training for running.  I'd like to find a way to get my itouch in the pool with me, since this is suuuuuch a boring activity.

I've done some googling on the topic, and am not sold on any great solution yet.

Thanks