MartinD The Cleveland milled putters are an option worth considering at the lower end of the price scale - have had a couple of these (and am currently using one of the Huntingdon Beach models), and they're very solid clubs.
I have a Cleveland Huntington Beach putter. Great putter but it's a little soft for the greens I play making you have to hit it too hard to get to the hole so I don't use it. I'll pull it out if I know the greens will be fast. Great putter for the money, though