I have the boots Rebecca mentioned. They are very nice and have held up great. They do get a little toasty being full leather but this is nice in colder environments. Only problem is that they are steel toe which means according to the Uniform Manual are not authorized.
Had a reservist in A school that had these http://www.steel-toe-shoes.com/Merc...toe-boots.
Said he used them on his police force and loved them.