Fax over LAN software for Mac OS X

I am trying to locate some fax software which I can install on a computer running mac OS X that will enable myself to send multiple faxes with multiple fax cards over a LAN . I have checked out some programs, including 4Sight's software ($1,600+ for multiple fax lines, bleh) and Fax Gear. I also have FxStuff Pro, but it does not include a server function, which is what I need.

Does anybody have either some good fax software which is freeware, or if the price is right, then I would consider purchasing it.

Thanks...