water jet cam

Hi all,
I've being reading about a water jet cutter, it looks like it can
handle about any material, but it's slower than lasers.
We got a lot of lasers running near by, but no water jets.
So, I was thinking about build one. I can handle almost every thing,
only limitation would be the CAM software.
I looks like it needs some kind of look ahead to comp.for lag when
cutting around corners, so the cam needs to know when to slow it down
when aproxing a corner so the botton of the jet can catch up with the
top.
Another option would be to use a tilting head(5 axis) to tilt the
head before the cutting gets to the corner.
Anyway does anyone knows of a affordable cam software that has any
of this features?

thank's
Fogassa