In reply to weirdfish:
I've never run in Hi-Tec shoes, so can't recommend a comparable shoe.
In general terms, buying a running shoe is like buying a rock shoe. The best one to buy is the one that feels comfiest. Go to a couple of shops and try on everything that you can be bothered to. If you go to running shops, you'll probably end up paying more than your Hi-Tecs cost you - unfortunately prices appear to have a direct relationship to running's popularity.
It would be useful to work out what it is you like about the Hi-Tecs (weight, fit, support etc) as a starting point. If you have problems finding normal shoes that fit (wide/narrow/shallow feet) then this is worth mentioning to any shop staff. I wouldn't worry too much about over/under pronation - some 'corrective' shoes can cause as many problems as they solve.
As a starter for ten, I do the vast majority of my running (both road and trail) in Adidas Kanadias. They're not the lightest shoe, but I find them really comfortable for my broad feet. However, they really messed up the sizings - I wear a UK 12 Kanadia, and I'm normally a 10/10.5 in work shoes.