Computers choice - recommendation?

Wheelspinner

I need another bike computer, this one for a TT bike under construction.

I only require fairly simple functions - speed, average speed, distance, odometer, time and stopwatch. Don't need cadence and I have a HR watch thingy anyway. The other major requirement is BIG numbers on the display - my eyesight is crap without reading glasses.

I like the Mavic concept where the speed sensor is built into the wheel skewer, means nothing needs to be tied to the fork leg, looks neater. Does anybody else do a similar thing or is Mavic the only brand making that design?

Also, I presume some of the GPS units can do speed and distance and all that without the need for a sensor mounted on the bike wheel/fork, but is it accurate enough, or slow to update? Do the batteries on those things need charging every time you ride, or do they last a while? The nice thing about the "regular" computers is they last months on a single CR2032 cell. I hate having to plug gagdets in to charge up and always forget...

Any recommendations welcome!

redddraggon

Garmin 500 (or 705)

GPS Speed is pretty accurate. Also been you can dump the second HR monitor, and can download the ride data complete with HR data, and then analyse it in your software of choice.

You change the number of stuff shown on screen, which indirectly affects the size of the font, so you could have it big if you wanted.

gregster10217

There was a review of computers in Cycling Plus, March issue if you can still get it. If not, it'll probably appear on here very soon, but their Best Buy was the Sigma BC1609 STS (£69.99 with cadence, £54.99 without cadence.)
Looks like the display was a good size with mot too much info on the screen at one time.