Hi Bret,

As far as guying my 25-g, I use regular stranded guy wire.  The stuff needs
to be cut with a chissel.  I have stakes in the ground similar to those used
for anchoring a mobile home.  The guys are tensioned with turnbuckles.

If you don't have much on the tower, you can get away with bracing it on
your house.  Of course, you can use guy wire separated along the way with
insulators if you're worried about interactions between the guy wires and
your antenna.