Work boots or steel toed boots can be worn for work and play or just wearing anywhere else.
I wear my work boots and steel toed boots as normal foot wear in most cases except when I want to wear my normal shoes or sandals when it's hot out.
Other good shoes that can be worn for work and play are Adidas Samba, Ferragamo lug boots, Tecovas cowboy boots and Frye Capmus.
Rockport also makes some very comfortable business-appropriate shoes.
You should also look at Cole Haan, Timberland shoes for work and play.