I'm looking for the best raster to vector conversion tool. I'm not wed to getting an ESRI product, just so I can convert to an ESRI file format. We'll be converting Mylar line drawings, b&w scanned maps, and occasionally products like DRGs. Foremost, I would like a tool that does the best job representing the original data and has batch functionality. Secondarily, I'd like a product that is automated and easy to use.