It's an ass ache but if your halfway skilled you can do it. Get all yer sh*t together: parts, manual and torque specs. Have a buddy help you lift the head, it wieghs somthing like 70#.
Be sure to label all parts. head bolts and pushrods need to go back where they were.
Be super, super clean about everything. Clean up the motor before you start. Clean your bolt holes so your torque is right and make sure the gasket goes in right side up. I always chase the bolt holes with a tap before re-assembly.
That's about all the "gotchas" I can think of.