Dear All:
Thank you so much for your time and detailed replies!
This is incredibly generous of you! Thank you.
I decided to bite the bullet and buy new wireless and graphics cards.
The lesson for me is that I will do *very* extensive research before buying any new computer. Also, I will never buy another Nvidia product in my life
Anyway, I will post again if I run into install problems.
As a side comment on my experience so far, I am absolutely amazed by the quality of OpenBSD. I have nothing against the others (in fact, I want all 3 on my HD), but the cleanliness and clear documentation of OpenBSD are outstanding!
Thanks again for your time!