DV/pro battery solution

Hi, I'm looking at some battery solutions for a BMC, I will be renting for 2 weeks. I will be traveling south of the border away from main cities. Conditions and subjects will change.
The first option i was looking at is from ikan. it's for DV batteries and it mounts on top of the camera and it fits my old camcorder batteries roughly 45.00 usd @ B&h or the Pro batt solution for Sony V or Gold mount. It mounts on rails and has a quick release for around 145.
What would you get? any thoughts?
The first option i was looking at is from ikan. it's for DV batteries and it mounts on top of the camera and it fits my old camcorder batteries roughly 45.00 usd @ B&h or the Pro batt solution for Sony V or Gold mount. It mounts on rails and has a quick release for around 145.
What would you get? any thoughts?