My two recommendations would be:
Finn Comfort's Vaasa 1000 - I owned two pairs over the course of about 7 years, and these shoes went everywhere (work, camping, you name it). They have a wider-than-usual toe box, which means they allow your toes to spread while you walk, and when you are standing still, they don't do anything. It's hard to describe, really, but I suppose the closest description is that the shoes don't support your foot so much as they "
spot" it. For my feet, the shoes were completely unobtrusive unless I was actually walking/moving/running/climbing...kind of like sandals except for being closed-toe. One caveat, the soles are reasonably oil- and chemical-resistant (I wore them while working at a service station), but mine deteriorated unexpectedly quickly* after being frequently brought into contact with blood (if that matters for you).
SAS' 'Bout Time - I bought a pair of these in black to be my "good" shoes. They're dressy enough to serve as formal wear (they were my "tuxedo shoes" for about 4 years of extremely light wear), but I put them into daily use after my Finns wore out. They were only just retired at the beginning of this month after probably 12 years of service, of which 7-8 years were daily wear. They are very lightweight, and walking around in them feels a bit like someone took two small but thick
spiral braided rugs and stuck them to the bottoms of your feet...very comfortable. I bought a pair
(EDIT) of the "Time Out"s (/EDIT) for my dad about 20 years ago, and he's pretty much bought nothing else since.
Even if you don't feel you could afford their prices, I
strongly recommend you at least try both of these (if available in your area) to get a feel for them.
--Patrick
*First pair lasted about 5yrs, second only 2 due to the soles deteriorating as mentioned above.