I am very big fan of her and really envy her!!! but I have heard that later she is using <a href="http://www.aiglemed.com/mobility-aid/">Powered wheelchairs</a> because of some disease. Is this true or just another rumor.
I had a meccano kit as a kid (some bits I still have. And I found some more on a flea marked a few years ago too).
What I remeber most is reading the sparepart sheets and drooling over the parts that I never got my hands on.
My vote is for Meccano (similar to what was called Erector Set in the US), rather than Lego.
Initially, Lego was (or seemed to be) more oriented toward building buildings, rather than machines, so it was not as compelling to me. Check out that locomotive in the Wikipedia article.
I built my first four-wheel drive electric car with Meccano. Too bad the to get real power, I had to use the electric motor that used AC from a wall outlet. Kind of restricted mobility. But it sure could climb.
Hey, come to think of it, that may be why I don't see a future in battery-powered electric cars to this day!