The Nikon LS-2000 Super CoolScan Film Scanner which I purchased before I bought a digital camera might now be considered a dinosaur as higher resolution, plug and play scanners have come along. The Nikon LS-2000 is a SCSI interface which required a bit of work to get set up. Things are much easier and cheaper now....I paid over $1500, but never regret the purchase...I have scanned and sold more than enough of my old 35mm slides with it.
The idea of a desktop digital color scanner adapted for 35mm film in strip or slide format, was at the time quite a novel idea for the average person.
With photo enthusiasts and professional photographers in mind, the Super CoolScan features superb color accuracy and 2,700 dpi optical resolution with 36-bit color images in file sizes up to 58 MB.
Nikon's Color Management System allows you to produce expeditiously sharp scans with notably true-to-life colors.
Top-quality output is the paramount concern behind the design of the compact (5.5 pounds) Super CoolScan. You can scan 35mm film strips or slides and Advanced Photo System film. Adapters permit an exchange of film types without resetting the scanner or software. The average scan time is approximately 20 seconds at 2,700 dpi optical resolution. LED technology provides unadulterated, dependable color without requiring recalibration and supports work in 1 of 10 RGB color spaces, plus CMYK. The multisample scanning feature permits automatic removal of surface imperfections from your scans and a high dynamic range of 3.6.
You can get some truly great results from slides or 35 mm negs with the Super Coolscan LS 2000.
One of the best features is the Digital ICE, a revolutionary technology (at the time) that locates, isolates and subtracts defects such as dust, scratches, and smudges on the film surface.
The Nikon Color Management System provides very accurate color and correctly matches colors on monitors and printers, and users can work in sRGB, CMYK, RGB and Lch color spaces.
You can purchase newer scanners like the LS-4000 and such, which technically have higher resolutions, but in the end, apart from ease-of use, you final image will not necessarily (to the naked eye) be noticeably different.
If you have an LS2000 don't bother upgrading...if you are purchasing a new slide scanner, don't be obsessed with "resolution"...you can sell images created with the LS2000 to most magazines and publications.
For an excellent detailed review, and examples and instructions for the LS2000 user , try this guy's page.