I think the greatest abandonware site is popup city Check it out. I highly recommend Outwars. You can play it on MSN Gaming Zone if you get reg crack.
Edit: PM me for reg crack for outwars or go to http://www.google.com (ingore all but regfixer.) Also you have to put Outwars in C:\Program Files\Microsoft Games\Outwars to get registry crack to work for it.
*let's stick to PMs for these please