Head off -- any advice?

["Simon Matthews" <simon_atwork@hotmail.com>]

For the first time, I am going to remove the head from my MGA in an attempt 
to cure the leaking head gasket.

So any advice? Things to watch out for? I have Haynes and factory manuals, 
but is there anything not documented in these?

I have heard that one should chamfer the stud holes -- with what? How do I 
stop metal particles going into the bores?

Simon