I recently bought the Intova Supernova and the the two armed base tray. I use the Supernova as a focus light and I have the IS-2000 strobe on the other side with an IC-12 camera in the middle. Wow. The Supernova adds so much light, and much underwater pics are much sharper and richer now. I will post some of the pics after I resize them, so they are not so big.
The IC-12 does have a rechargable battery now, instead of the AA's of previous models. You can charge the battery in the camera via a USB cable that comes with it.
Great feature so you don't have to worry about finding the proper plug/voltage when you are traveling. I did notice some variance in how long the battery lasted. I did 3 dives a day for 14 days. Most days the battery lasted all three dives, a few times it did not make it to the end of the 3rd dive. Some of it could be contributed to operator error. (ie me leaving the camera on during surface interval) I am ordering a back up battery as I am writing this, so as to make sure that is not a problem in the future.
Bottom line, after two years of owning Intova products, I am super pleased with their quality, performance and value. Add to that the support that I have gotten on this site from reps and fans alike and I can't see how you can go wrong with Intova.