3-D molecule representation software NEEDED

[RONALDO QUISPE]

 Hello,

    I need software that can represent molecules in a 3-D format. I
need to be able to modify and create other molecules. I have seen CAD
programs that can do this but are rather expensive. Anything out there
at a reasonable price?

                                                Ron Q.

    E-mail: rcq at ix.netcom.com