BvR, I too just went through the process of researching and purchasing a HRM. There are hundreds to choose from. It comes down to finding one that does exactly what you want it to do, and then finding the best model with those characteristics.
I'm new to S&S. One week to be exact.
This morning I had my first full session with my new HRM.
The practice session was everything I wanted it to be.
I just bought a Polar FT-7.
I almost bought the FT-1, but the FT-7 is something I could grow with for while.
The FT-1 is strictly heart-rate.
The FT-7 takes it to a whole new level.
I wear a watch a lot of the time, and the chest strap does not bother my 48" chest, but I am exploring the limits of that flexible fabric!
The H7 sounded great, and was my first choice since the readout would be on my phone instead of my wrist, allowing for practice of
exercises Bill mentioned, but the H7 will not connect with my iPhone 3GS.
As for the watch getting in the way of the bell, I plan to turn the watch around or simply move it up my arm where it will be out of the way.
When you add GPS features they can get expensive.
I just wanted to keep track of my HR and collect some data about it.
They are difficult to return so be sure you research well and decide exactly what you want.