Originally Posted by icemilkcoffee

I don't really have any issues with either square taper or Octalink, but for you, I would suggest going to Hollowtech II cranks with external bottom bracket bearings. That is as tough and durable and foolproof a configuration as you can get.

Originally Posted by BTinNYC

+1 on Ice's recco.
Hollowtech 2 is a big upgrade and unchanged since 2004. Solid, easy to maintain and lightweight.

Originally Posted by Bill Kapaun

The wider ridges of an Octalink V2 spindle
plow into the grooves in an Octalink V1 crank.
Thanks to David Richardson for the photo.

Originally Posted by sweeks

Be aware that this is probably an Octalink "Version 1", which was not in use for very long. It was replaced by "Version 2", and the two are not interchangeable. See THIS.
I have Octalink V1 on my Airborne, and since I like the bike and plan to keep it, I have been acquiring spare parts. It was nearly impossible to find a new bottom bracket, but I was able to locate a "New Old Stock" one. I may never live long enough to need to replace the BB, but I'm set.
Anyway, just so you know.

EDIT: Also, Octalink is a very nice interface (even V1). I've had my cranks off several times and replacing them is easy and predictable. Square taper isn't bad though.
EDIT 2: Mine's a triple too. I'm keeping it... I don't use the small ring much, but I'm not getting any younger!