ported box program?

[NT_Hardcore]

is there a program or a site for designing a ported box? and im looking for a good site for multiple sub wiring... like 6-8 subs thnx for any help-

[bonesninja]

winISD

[9seconlives]

http://spkrbox1.spaces.live.com/

http://mobile.jlaudio.com/support_pages.php?page_id=126

http://www.rockfordfosgate.com/rftech/rftech.asp

Hope these help?