Fridays workout and an exciting New Challenge

Well as predicted yesterday's workout was the hardest ever but I felt great yesterday. I went in half hour earlier and did 1.5 miles on the treadmill before my trainer arrived and then we did a full hour of intense Muai Thai training. He pushed me harder than he has ever pushed me and began making me dig deeper within myself. Typically, my fears get the better of me and I decide I can't do more than this, however, I am starting to realize that I am capable of doing more, and working harder than I currently am, so this is going to be my focus for a little while.

On another note, I was reading a cyber friends blog, and she is planning on climbing the CN tower in April in support of WWF. For anyone who doesn't know, the CN Tower, until recently, was the worlds tallest free standing structure. I am going to ponder this for a few days, but I think the seed has already been planted and I may very well climb the CN Tower as well.

Right now I am telling myself "Feel the Fear, move through it, DO IT ANYWAY"

What do you guys think, lets take a poll, can this 43 year old, 250lb ex-smoker climb the CN Tower(we're talking 1776 steps, or 142 flights of stairs)?

Majority rules, and if the majority thinks I can, then I will :)