Hey BillieCat! I was browsing through other topics and found this one...
My Father in law has CLL, and initially his doctor told him he would probably die of something else before the CLL got to him. (He's over 70.) HOWEVER, he was also recently diagnosed with non-Hodgkins lymphoma...so the two cancers are kind of screwing up his system. He's doing chemo now, but to be honest, I'm not sure which cancer it is for. They had initially told him that his CLL was at such a stage that they couldn't actually do any meds for him, becuase it was 'dormant'...but now, the lymphoma kind of threw a wrench in everything they thought they knew.
BUT, if it were just the CLL, I think he could have gone a good 20 years with no problems. His father also died of CLL(though they swear it's not hereditary) and he had it for quite a while before he had any ill effects.