Well, nothing I wear is appropriate for my line of work. I'm in IT.
Putting that aside, it's about how far I can push the bounds of 'Looking good, bro!' to 'Really? Why?' I think suede tassels like RDiaz wears could work alright, but I'm holding off, as I don't even have any staples. I don't have any brown shoes besides my EG Westminsters. I need some brown captoes for my next purchase. I was going to get that instead of the full strap navy shell, but I couldn't hold back. I mean, SHIT are these going to be hot.
(photochopped pic of a shot from The Armoury)
True, it really depends on your environment. I have dark brown suede tassels, which I prefer to leather ones as well. Those navy loafers are awesome! I already have navy monks, so burgundy shell loafers are next on my list. But yeah, you should really go for some nice dark brown captoes, probably the most versatile shoe there is.