TOPS Knives are extremely well made, quality tools. I like the looks of the Ferret. To me I'd try it out as a boot knife as well as a belt or neck knife.
As to technical info http://www.topsknives.com/
. I'm currently looking at getting another TOPS myself, a Dawn Warrior. There are a number of excellent knives out there to choose from, however I don't think you'd be disappointed with TOPS.