Take a look at 'Westco'. In the $300 range, but custom made to fit your feet. They will measure your feet or send you a measuring kit. They can do steel toes, steel sole plates, thermal insulation, etc.

When I was wearing boots all the time, I wore them and was pretty pleased with them; my boss swears by them. I've pretty much given up wearing boots, so feel less inclined to give 100% positive reviews [Linked Image]
http://www.westcoastshoe.com/wesco/

One comment on steel toes: depending upon the application, steel toe boots may be considered _more_ dangerous than non-steel toe boots. You will need to check with the jobsite to see if they require or restrict steel toes.

-Jon