The nice thing about using IR and an IR543 to control X-10 modules is that you can enter any sequence of devices (say lamps 1,2,and 4) then hit the command (ON,OFF/Dim/Bright). All devices selected will respond the same way to whatever comands follow. The macro you'll need would look simply like:

X10 device#1 (incandescent)
X10 device#2 (incandescent)
X10 device#4 (halogen)
X10 dim
...
(however many dims required to get to the level you want)
...
X10 dim
X10 device#4 (halogen ONLY)
X10 dim
X10 dim
(extra dims to get halogen down to relatively same dim level)



Dave