Hey folks,
I suspect when the OP said "40D" he actually meant D40.
.. he has always sworn by his 50 year old nikon. All of a sudden, he is interested. He does not know how to use a computer, so ease of use is extremely important.
At this point in his life, and from the description given by the OP, the man probably just wants to take photos, plug his camera into a computer, and view them immediately.
Hey... I'm glad you're not married to the idea of 55 and over being ineligible to understand anything digital...... I'm not married to the idea that anyone over 55 must stay away from a dSLR, just a thought...