Quite a while ago I gave up on the metal toe-clips and went to plastic toe-clips. I think the plastic ones are much easier on the shoes (one may need to de-burr them).

Last spring I made the leap to SPD clips as I liked how they seemed to hold my feet more stable on the pedals (no tilting sideways), and have been happy with the choice.

I found that Shimano makes some casual looking SPD shoes, but your DZR Ovis shoes also look quite nice. I may have to check them out in the future.