I would think normal for us is the same as normal for the general population -- Just keep in mind that our actuals may increase if our thyroids decline over a long period (years) as a result of radiation therapy -- My Doc uses the lab's .046 to 4.98 as the standard but tries to keep me in the middle of that.
Here's a site I stumbled across which uses TSH, T3 and T4, but he's selling stuf and is not board-certified in endicrinology so it isn't gospel in my book:
http://www.drrind.com/thyroidscale.asp#scaleSome of it is science and some of it is art, so there are a number of potential charlatans out there!