It's free.
It reads PDF.
It's VERY fast (much faster than adobe). Even with graphics.
NO installation required, and only 3 files (two of which are TXT).
Foxit Reader
http://www.foxitsoftware.com/pdf/rd_intro.php
I tell you, it's wonderful.
There's this thing called Adobe Read 7 that's better than Adobe Reader 6. It's fast, free and reads PDFs :)
Works for me, but thanks for the tip.