AF, HCM, Amiodarone and Ablation

Hi All - new on here. I have had three episodes of AF (July 06, Jan 08 and Feb 08), first treated with IV Flecanaide but the doctors are unwilling to use that again, so have put me on Amiodarone, Bisoprolol and Warfarin, on top of the meds I was already taking (Amlodipine, Losartan, Simvastatin), which seem to make me very tired and lethargic all of the time, and also very 'constricted' - even gentle excercise makes my chest tight and breathing difficult, and when I stand from sitting or crouching I nearly pass out. The consultant has discussed the topic of Ablation very briefly, but I think there are other tests they could do first? (treadmill, 48/72 hour heart trace) I should mention that I also have thickening of the heart wall muscle, which they are not sure about (could have been caused by hypertension or could be HCM) - I have had a cardiac MRI last month so that might help when I see the results.
Can anyone shed any light or offer any suggestions about this? I was led to understand that the Ablation, if successful, could enable me to come off some of the medication I am on, which might let me get back to excercising normally again. I am only 50 years old and up to these latest episodes fit and active (golf, squash, cycling etc, none of which I can do atm), so all this is a bit of a pain as you can imagine.
Any contributions gratefully received (financial ones VERY gratefully received!!)    ;o)     Regards Chris

[dunbeatin]

I should add also that I live in the UK, seems this is a USA forum??