Just regarding the cascading of splitters.
You can get 6 way:
And even 8 way types:
Just bear in mind that with the more ports you have, the higher the losses will be.
Scott35,
I think you may be referring to Air-spaced RG-59/U coax, it used to be used here quite a bit for TV aerials and the like.
The air-spacing gives a lower attenuation figure than the standard solid polyethylene insulation.
Hmm, RG-7, can't say I've ever struck that one before.
[This message has been edited by Trumpy (edited 05-24-2005).]