Update on the D3. I will have one shortly as well and be using it. The Disto™ D3 should hit North America the first week of December "07. It will be available at http://www.laserstreet.com/leica-disto-d3.htm with a price of $349 USD. Don't forget your group code "cavers".
Updated specs from the previous post on the Leica Disto D3 are: Measuring range of 2 in. – 328 ft. (0.05m – 100m) Accuracy of ± 1/25th in. (1 mm) Inclinometer measuring range ± 45° Inclinometer accuracy to Laser Beam: ± 0.3° Inclinometer accuracy to D3 Housing: ± 0.3° Dimensions: 4.9 x 1.8 x 0.98 in (125 x 45 x 25mm) Weight w/ batteries: 3.9 oz. (110g) Stores 20 measured values IP 54 rating (splash and dust proof – same as the Disto A3) Light sensor to automatically switch on the display and keypad in low light environments. 3 year warranty To view the full specs on the Disto D3 and see how it compares with other Disto models, a Leica Disto comparison chart is available at http://www.laserstreet.com/disto_laser_meters.htm; there is a PDF of this chart for download as well.