Thanks for these inspiring stories!
At age 41 and just coming out of a compeletly different carreer, I just got my FAA PPL in November and am now working towards flying commercially, too. The plan is in place and if everything goes right I should have a commercial license no later than spring 2012.
And - yes - I too had these thoughts of "am I too old?" But I agree to the writers before me: if this is your dream then you need to go for it. AND it has been my dream since I was a little girl.
Blue skies!