Yet another question about my new granite vanity countertop.

I'm going to pull off the existing cultured granite (ugh) countertop, backsplash and side splashes. I hoping I can do this without too much damage to the existing wallboard. If I run into trouble I patch and fill them. I'll then lay down the new granite countertop. I plan on just caulking around the edges with the walls (suggested in an earlier question I had)?

Then I'll put in the new back and sides splash pieces (also granite). What should I use to adhere them to the wallboard and/or countertop?

If anyone has any web sites or books that I should look at to help me with this, that'd be great.

Thanks again,

Carole