Created 3D?

Any suggestions how this 3D space was created??

http://www.saatchi.com/worldwide/flash_intro_menu.asp

I know flash was used but would some other 3D based package have been required to create the perspective??

Working on a project at the mo thats gona require creating a series of rooms; not really proficient with a 3D package and would like to create it exclusively in Flash if poss, any other links at there may show a simular approach??

Cheers!

swift 3d may be the best answer for me:)
or lightwave/3dsmax with the plugin from electricrain

http://www.kirupa.com/developer/actionscript/3dindex.htm