Is there any way to have a cgi-bin for each domain under my account?
Yes, every domain you host at BombayBiz can have its own cgi-bin. When you create a new domain using the web control panel, the web control panel adds a cgi-bin mapping for the new site. All you need to do to use the cgi-bin mapping is create the physical cgi-bin directory in the directory that the new site is mapped to.