Old Browser Emulation

[gagslondon]

Forgive me if this has been asked already, I have searched Tek-Tips and Google.

Does anyone know of a site that facilitates Browser Emulation? I am particularly interested in version 3 browsers at this time but a site of this nature would be very useful generally me thinks.

The closest I have come are:

http://www.dejavu.org/emulator.htm

and

http://www.delorie.com/web/wpbcv.html

but the mustard remains uncut.