Hi Gavin,
I was in your position in April of this year, feeling well with my only symptom being rising paraprotien levels, I chose to have chemotherapy and had four cycles which wasn't too bad at all, I didn't have any significant side effects except for reduced energy, I've had my stem cell harvest four weeks ago and am having my transplant next week.I can't wait for it to be over to get on with my life. I just have it in my head that this year has been given over to myeloma (I was diagnosed in January 2010) but in the new year I'll be in recovery and hopefully remission.It also helps that I have very positive support around me, I'm 45 with two kids and lots of plans for next year. My advice would be to go for it, the sooner you start the sooner you'll get to remission.
Regards
Frances