Does anyone know anything about Easter in Santiago de Compostela? Does one need a reservation for the Easter services at the Cathedral? Is the botafumeiro used? Is it too crowded to go to Santiago at this time?

Yes, you will need reservations during Holy Week!

I meant reservations to the Easter Services not accommodations.

I cannot find any information about reservation any spot in any service form the website of the cathedral:
http://www.catedraldesantiago.es/
It is an awful flash based website and I cannot link back to the information I want to show you but I have found some contact details, maybe ask them directly?

+034 981581155
[email protected]
Plaza de Platerias s/n
15704 Santiago de Compostela
Galicia
España

Thanks ribeirasacra. I have looked at that site also, to no avail. I will check the email you sent and maybe call them directly. We are renting a car from Santiago and driving along the north coast to San Sebastian. Any suggestions of places we must see. We plan to take at least 6 days and I have Picos de Europa scheduled for 2 days.

It does depend on your tastes, for instance I do not like lying on a beach and frying myself in the sun. I personally would spend most of the time in the Picos I much prefer the mountains.
I have found places Lugo, Mondoñedo, Oviedo, Santillana de Mar and many many other towns quite quaint.