One of the way scientists try to combat cancer is to selectively disrupt angiogenesis, the process by which blood vessels form to support the growth of the tumor cells.
Biotech company Amgen launched a spiffy new website with 15 gorgeously rendered animations explaining the process of angiogenesis as it relates to vascularized tumor in plain English.
You don't have to be a molecular biologist to appreciate the "Fantastic Voyage"-like animations - and you may learn something cool about cancer biology!
Not to be missed: Link - via Wired Science
Word of caution, though, to all those who think think the modulation of angiogenesis is 'the key to cancer'--pay attention to the phrases such as 'may be'. It really 'may be', but those are also the things that are definitely not guaranteed.
http://www.studiodaily.com/main/technique/tprojects/6850.html
The lab also has a version of video with narration instead of music so to explain what is going on.
http://multimedia.mcb.harvard.edu/anim_innerlife_hi.html