In reply to Martin P:
I only have a little ice-climbing experience, but can't say I took to it. Here's why: I love the direct contact with the rock, the textures, the shapes, the guessing games. On ice you have minimal direct contact with the medium, you just shove in the metal-work and then aid on it! Weird.
Also, ice seemed to me (at least as a beginner) to test mostly brute strength, nerve and balance. Rock tests strength, nerve, balance, ingenuity, imagination, agility...
I'm glad I did it because I love the high places in winter, and now I can make a mean balakov thread. But I wouldn't go looking for frozen waterfalls to climb again.
All due respect to ice-climbers, though - it is fucking scary!
Clare