Chaim Goodman-Strauss has movies of hyperbolic space (first link) and lots of other amazing geometry (2nd link)
This page has a picture of hyperbolic polyhedron at the bottom.
NonEuclid java software
JOMA Bennett applets
JOMA: The Hyperbolic Toolbox: Non-Euclidean Constructions in Geometer's Sketchpad
Formulas for transformations (pdf )
David Henderson models
http://www.math.cornell.edu/~dwh/books/eg00/supplements.html
Hyperbolic Art and the Poster Pattern Douglas Dunham
Second Dunham article: Transformation of Hyperbolic Escher Patterns: Connections in Space
More tessellations (pdf)
Trig of circle limit III