I just picked up a Solarforce XL-M Drop-in and host. It's noticeably brighter than the MC-E from Shining Beam it's replacing, and has a lot better through. All together including shipping it was $46.48 from http://www.solarforce-sales.com, which is the retail end of Solarforce lights.

Personally I think that Solarforce lights are one of the best deals around as they are sturdy inexpensive, and simple and cheap to upgrade as they use a P-60 drop-in.