I got a new window a while back. I am going to put sheetrock around the interior. The question I have about this is what do I put for the base or ledge of the window. Some carpenter told me to put 1/2 or 3/4 " plywood instead of sheetrock and texture it like the rest with corner bead and such. I am not sure if that is right or would plain old sheetrock be the right way to go? Thanks.