Although it's been discontinued for a long time now, my favourite computer so far has been my old Cateye CC-8000 "ATC". It was a ruggedised computer which looked kinda bulky. It had a wired pickup with a thick cable. It was totally waterproof (you were even supposed to be able to operate the buttons while submerged). Some of the functions included the typical instantaneous/max/avg speeds, stopwatch, trip counters (trip distance, trip time, total time, total distance, distance per day) and auto start/stop. But it also had one unique feature at the time... 10 memories... each which could be used to "mark" a point in your ride and it would store all of the above speed, distance and time data (and associated subdata) at the instant you pushed the button. Despite the vast amount of data available, the screens were well organised and easy to read. It was very handy for the kind of long-distance offroad touring I was doing. The only problem was that it was rather pricey (~US$85 in 1990).

I currently have Shimano Flightdecks for my bikes... the jury is still out on them. |8^) I like some of the features a lot but there are others which are rather niggling. I like the virtual cadance and the gear display as well as the integrated controls but I sometimes worry about the ruggedness of the unit (it has survived some serious crashes on my MTB though) and I sure do miss that memory feature of the old Cateye. The Flightdeck's display order and toggling between different screens can be a bit confusing too... especially when your're a little oxygen deprived.

BTW, I notice you are also an Aegis rider...