ricbiggers,
You DO know that Leica Geosystems ("Disto") actually makes the Stanley unit, right?
I believe the best source for user input and help on measuring with a Disto is the MobileAppraisersGroup on Yahoo. While there are many here who also use a Disto, the MobileAppraisersGroup is more focused on topics like this.
From your description, I would highly recommend getting a unit that has a scope. This is essential for most work where routine measurements are more than (say) 30' in outdoor/sunny conditions. I believe that the "lowest" model with a scope is the Disto A5 and the Stanley TLM300, which are pretty much the same model, LOL. People who really know lasermeters say that they'd recommend the "real Leica" over the branded Stanley due to the way warranty work is handled. I have to beg off making a recommendation on brand due to my long association in developing the Bluetooth Lasermeter (Plus and later A6) - so I am biased, but only on the BT side of things.
If BT is not something you need/want, consider the new Hilti PD-42. I believe it is just slightly more than an A6, but I know a lot of appraisers who prefer this new unit, simply because it is easier to "see the dot" through the scope at distances and/or less than ideal lighting conditions.
Disclaimer: We sell Disto products, but we also recognize their deficiencies along with their strengths.
Hence, I'd say to contact Matt Johnson at appraiserdeopt.com for advice on models, etc. Matt is also an ex-appraiser and really knows his stuff. If he recommends a more expensive model, it will NOT be because he is trying to up-sell you - it would be because it is a better fit for your needs. You wont find anyone who has dealt with Matt who says he was not more than fair and has gone the extra mile for a customer. If you hear of a problem with a Disto or seller, it'll be because they got it somewhere else!
Anyway, Matt also did a video CD on how to use a Disto and I believe he has some short ones available on his site. Also, you might want to see if anyone in your area is proficient with a Disto and offer to buy them a burger and a beer if they'll show you the ropes. Having someone who knows how to do it properly and efficiently will save you a bunch of time and get you a return on your investment much faster.
Hope this helps!
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