Has anyone in the area done a plug-in conversion yet ? I have been checking them and only 1 company is actually doing conversions so far and they are at a premium price so far. They are in Colorado hybrids-plus.com will do it for 36K. Many others have plans and test Prius PHEVs but are not ready yet. There is a good non profit source at calcars.org they list all the companies. Even Toyota is testing a few and may offer it in the future. Toyota just adds a second NiMH battery pack with each of them a little large than standard. It about doubles the mpg ! It would cost them about $5K more. That would be sweet. A123 lithium battery maker said they will have their packs mass produced and available in 2008, but didn't say what month or a firm price. They target 10-12K.