thats a giant question with many correct answers. first ask your self what your going to be doing with your braille display. A. a desk top or note book computer. B. do you want it to be multi purpose like have ability to do notes? some units i think also had hard ware synth in them. secondly ask how much your rehab is willing to pay for one. the second question will determine if your buying a 40 or 80 unit. actually the first question may also bear on that fact. if you want it to work with note book it will be a 40 cell unit. braille cell quality is an issue. actually heard poppen mier was best in this regard. in addition to firmness is the energy usage of the design. this factor mainly concerns units design to work with notebook computers. think some are designed to not even need batteries to operate. they may be able to use the power of the u s b wire for operation and hence get their juice from notebook. realize such a design may drain notebook faster. jfw support is an issue. obviously that support should be best with their own products, the ones formerly maid by telesensory. also realize that telesensory was never much for innovation, that usually came from alva poppen mier and others. now that its own by f s their doing better in that regard. also consider that human ware has worked with f s to get better suppport in their braille displays. so basicly most using jfw go one of 3 routes, human ware product, alva, or f s product for support reasons. all threeoffer u s support and have u s locations. human ware basicly looks at the entire market looking for good products that they feel bring new designs to consumers. now the wish list of wanted features. touch strips like the sattelite has, ability to replace individual cells with out shipping the entire unit for repairs. found in poppen meir. u s b connection to computer. think alva was first to do this. u s b connections means their are not problems with irq cconflicts. fighting over serial ports. plus easier to move from computer to computer if you desire to do so. ability to act as u s b hub for keyboard and mouse. the ability to operate off its own power and store notes like a note taker. the ability to input info into the note taker. how about a braille keyboard interface for inputting input to the computer. long battery life. the ability to be free from standard keyboard. this means best windows compatibility and is one factor you will need to spend lots of time on when looking at differant braille displays. five cells prior to the text for extra info. poppen mier adds extra cells in addition to those found prior to those in front that can be programmed for extra info for the current character. its a vertical strip of cells. so it could give back ground color, foreground color, and other such info. concaved shape for reading braille in braille star. i liked this, another may not. more than likely after you look around you will find your self thinking you wished you could find a unit that incorporates several features from several differant units. then you will need to make a choice. their is also a trend that is between note taker getting more features to act as a braille display for desktop and also desk top braille displays now adding some ability to store data in the braille display it self. good luck and happy shopping. bill -- To post a message to the list, send it to jfw@xxxxxxxxxxxxx To unsubscribe from this mailing list, send a message to jfw-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line. Archives located at: //www.freelists.org/archives/jfw If you have any concerns about the list, post received from the list, or the way the list is being run, do not post them to the list. Rather contact the list owner at jfw-admins@xxxxxxxxxxxxxx