I feel strongly that our Patience™ will be rewarded when we hit 100nm and possibly before.
Here's a video showing p-type and n-type CMOS explanation. When the video is over you'll feel as old as the guy talking, but for me it was a really well paced and patient™ explanation:)
http://www.youtube.com/watch?v=uT5QtayRg6c
There are other videos by the same guy that I'll check out later.
Have a great weekend.