Another vote for Tubus. I haven't seen more elegant and durable production racks on the market. All the other front racks I see look like ugly rear racks or are just so big and clunky or not designed for panniers.

If you buy a nice rack that is sturdy and well built such as the Tubus Duo or Tara (if you can't do a Duo) it may well save your tours or commute and in the grand scheme of things you will more than get your money out of them if you commute regularly or tour a bunch. Plus they are a good piece of mind item. You don't want to have to worry about your racks ever.