are you reusing the T-belt? I"d say becareful when you take the cam out not to knick the lobes...something I've always been told.
Also, I'd try to drain as much of the coolant out of the system as you can, that way there isn't as big of a mess when you "break the seal" as you take off the head. I'd be prepared to have new vacuum hoses ready for when you put it back on, as they old ones will probably crumble or crack when you take them off.
Also, take the head studs out in reverse order that it says to put them in (with my "nissan" cars, it's tighten to 20 ftlb, then 50lb, loosen to 30ftlb, then to 50 ft lb... and in a certain pattern.) Check the FSM, or chiltons/haynes.. If you don't do it correctly, you risk warping the head...which if it's going off to the machine shop, may or may not be a big deal to you..
EDIT>> I think the pattern (reversed) is loosen them from the outside working inward, alternating sides.
*92 MX6 188k miles
*93 240sx w/SR20DET (12.11@119mph @17psi)