Best Infrared Ghost-UFO Hunting Camera I can buy

I bought a Sony Handycam CCD TRV108 which seems very good in infrared mode and low light conditions at least compared to my newer Sony DV infrared capabilities... but I would like to know if there are even better cameras out there military type if possible that allow me to see deep in the dark like 100 meters deep and with clarity. Anyone here with knowledge on how to do that? I know besides the invisible infrared illuminations the infrared sensors have to be good so give me a good advice for a camcorder that has all that.