Removal of the cylinder head is straight forward and much easier that most modern front wheel drive cars. First up, get a Bentley edition manual, it's the one to use!
All the tools are standard metric. Buy a set of 3/8 and 1/2 drive sockets and a good torque wrench. (or rent one when you replace the head.) It is recommended that you replace the head bolts with new ones (torx) Be sure to follow the tightening pattern for the head bolts when you re-install the head. Probobly the worst part of the job is removing the exaust pipe from the manifold. Spray it and all other bolts with PB Blaster which is available from any parts store. (don't even think about starting this job without Blaster! Drain all the coolant, and pay special attention to getting the engine back in correct time!!! before attempting to start it. Good Luck! Jim