I'm going to re-run my mplayer test using the generic 4xAAA Soshine unit I bought from DealExtreme for $15 (including 4xAAA 900mah NiMH batteries - $9 for charger, $6 for batteries). At that price its hard to ignore and it also doubles as a charger for the 2xAAA needed for the iGo slim BT keyboard, and it also has a built-in torch thats handy for rummaging around gear bags.

Just kicked it off @ 4:10pm EST. Should have results later this evening.