Originally Posted by steveinptown
The one I am looking at is the CatEye CD300 Double Wireless as well as the Shimano Flight Deck.
You've set the bar pretty high in terms of "difficulty factor". The Cateye dual wireless models are slick and truly wireless, but they are also quite new and a bit buggy often times requiring factory replacement shortly after purchase: something to keep in mind. The Shimano Flight Deck (and the Campy ErgoBrain) are the most complex of the various computers IF you intend to use the full-functionality. Neither the Flight Deck nor the ErgoBrain are not truly wireless as there are signal wires that must run to each shifter for the remote switches and gear position indicators sensors.
Originally Posted by steveinptown
Also, even though it is "wireless," what are the components that need to be installed. Any info on this subject would be greatly appreciated.
Cateye = 1) computer head mounts on the handlebars, 2) dual transmitter gets mounted just behind your bottom bracket on the left chainstay, 3) magnet for wheel rotation goes on a spoke, and 4) magnet for crank rpm gets attached to the backside of your left crank.
Shimano = Installation prep: remove handlebar tape from your stem to your shifters and peel roll up the shifter boots (can sometimes be done carefully enough to allow for re-use of the bar tape. Next, remove two screws on each lever to access the signal wire connections for the gear position sensor and remote thumb switches. Computer Installation: 1) computer head clamp mounts on the right side of your handlebars; 2) signal wires for front derailleur & left thumb switches get routed and connected to the left-hand STI lever and the signal wires for the rear derailleur & right thumb switches get routed and connected to the right-hand STI lever; 3) after connecting the wires to the left and right STI levers, reinstall the cover plate and two screws on the each STI lever; 4) mount the wheel rotation sensor/ transmitter your fork blade; 5) mount the magnet for the wheel rotation on a spoke; 6) figure out if everything works; 7) tape the signal wires to your handlebars; 8) re-wrap the upper section of your handlebars with the handlebar tape that was peeled back during installation prep; 9) roll-down the shifter boots.
Originally Posted by steveinptown
Also, is there a preference to CatEye or Shimano as far as bike computer? Thanks.
The Cateyes are too new to know how they will perform long-term whereas the Shimano Flight Decks have a pretty good following of either very happy users or folks who just don't like 'em. Cyclists who sweat a lot and who ride on the STI shifter hoods should flush-out the levers after sweaty rides to help prevent future problems with signal wire connection corrosion. If you end up with corroded electricals you will lose the gear position functions and the virtual cadence.