[Worthwhile perhaps, reading this
http://www.microsoft.com/piracy/
But It is not a great threat. I would imagine Microsoft have too many larger eggs in their basket to worry about individual users.
". To download MSE, you must validate as well. It was the same way with XP Pro, I bought at least 40 legal keys "
No such thing. Keys are linked to the software. The "sellers" could just as easily give you the software, which would be the cost pf a cheap DVD. Keep in mind that they may also be selling them to other users. You could run into a problem with duplicate attempts to activate. Certainly, if that is the case, you will ceratinly have problems with updates.
" These people bought all of these multi packs "
Not sure what these are. I have never heard of them. Perhaps they are Technet keys, (which I use), or MSN keys. In either case it is, again, illegal to sell them.
"Remember early summer when you could pre order cheap? They sent me an email as well. I'm a registered Microsoft customer and have been so since 2002. A lot of people bought as many as they could, then resold them"
You probably mean Registered partner? I believe they were half price? One key per copy? As I said above, why not give the software as well. (Or are they using it with the same key.) I certainly would be cautious buying a key on those terms.
"There are the posts on this forum to download the discs freely, it is a legit business."
Too true. But you still need to purchase the key. Only the software download is free.
I could offer downloads, given a host site. Nothing, as far as I am aware, illegal about that.
This is not intended as antagonistic. Just trying to point out the traps in such purposes.