Kent and Weber are pretty much it.
Either Comp or Crane made one set of cams for pre98 Zetecs,
but I haven't seen them in awhile.
Weber high TQ cams are what I will be going with.
If using nitrous, I wouldn't go pass stage 2 of anything.
And really, stage 1 just to be safe.
Our engines are not meant for nitrous.
Another option is to get a Focus head,
build it up,
then swap it on.
That way you'll have mechanical lifters and a much larger selection of cams.
Mechanical = better than hydraulic for high RPMs.
