If those Miche hubs are the same, or very similar to the Miche Primato, then I'd avoid them alltogether. The bearings can't handle a lot of rain, so if you do a lot of riding in the wet, they won't last.
The flanges are prone to exploding too. A friend of mine nearly got hit in his eye by a piece of Miche hub flange. I had one go myself and have jeard of others who have had their flanges go. They'll be OK if you do very low mileage though.
But the Goldtechs with Mavic Pros for £200 are much, much better. They're easily the best fixed hubs I've ever used to date. The rims are a bit frail and really for racing, so you might want to try and get something more sturdy. I very rarely use a rear brake and usualy use a Schmidt dynamo on the front, which will have a Mavic Pro ceramic rim, when I get round to building it. But ceramic rims are another £50 each.