In reply to JonC:
I had Climbing: Training for Peak Performance by Clyde Soles for Christmas which has been brilliant. So, I try to do between 4 and 6 sessions a week with the aim being 2 Cardio, 2 Weights and 2 Climbing (Bouldering Wall or Outdoors). All this is with at least an hour of mobility and stretching.
The book keeps drumming into the reader that everything should be taken slow and gradual. Whilst its still hard work, sometimes things can feel easy but it encourages you to only gradually increase weight and time to avoid injury. For instance I've always been led to believe that working to "failure" meant until you physically couldn't do it any more. But in the book failure is when you can't do it with good form. Once you loose control of the weight or movement than you've failed and it's only once you've done something 2 or 3 times with good form that you should increase duration or intensity.
Anyhow the book has a finger board session and I've been using my rock rings after doing my weights, so this tends to be twice a week. I've been sticking to the shortest times and will slowly build up the duration and then the intensity. Basically its;
Biggest Hold (Top) - 2 x 45to60 second with 1 minute rest
Smallest (Three Finger) - 6 x 3to8 seconds with 5 second rest
Next Up (Four Finger) - 2 x 25to40 second with 1 minute rest
Biggest Hold (Top) - 2 x 30to45 second with 1 minute rest
I couldn't recommend the book enough!