I had an Amazon.com gift card so I picked up some TuffLED floods to try them out. So far I'm very impressed!
I know they will blind other drivers so I only use them on backroads, but they sure are nice and bright. (Wifey calls them "stupid bright.") The TuffLED 20" bar is next!
I'd wire them up and use them for dark backroads and offroad use. I'm just a sucker for illumination, though.