Old School Gaming on the Modern Consoles

It is amazing how far we have come since these old games have be made.  We now have consoles powerful enough to produce almost realistic graphics, and that can emulate the consoles & computers of yesterday.  If we look at the Xbox 360 it is even more powerful then most of the computers in use today.  When Doom came out on the Xbox Live Arcade it just seams right for the console so I didn't think to much about it.  Then I was reading about the up coming games to the Live Arcade and I seen an old computer game I use to play called "Red Baron" this is what really made me think.  I seen this title and though what other games would work.  I though about my favorite old computer games the King's Quest series and I though about it for a bit and realized that I would only work  well on the Wii with the Wiimote, all but the last one in the series (King's Quest VIII) which would work better on the Xbox 360 but it is too big to be a Live Arcade title (which has a limit of 50MB) it would have to be a full title or be sold exclusively on the Marketplace as a special.  The other Quest games in Sierra's line up would work as well on the Wii.   The harder I though, more and more titles I could name that would work on both systems exceptionally well.  What titles can you think of that would work well, and on what system?

I think this a good idea because because these companies aren't releasing these old games into the public domain where they would be available for all to enjoy and they aren't making any money of these games anymore.  I feel that this solution would be beneficial to all.