"We think we want all our photos in black and white instead of color - is that something we should decide ahead of time?"
While you're welcome to make that decision ahead of time, you don't have to. We shoot 100% digital, so all images are originally in color. Any image can then be converted to black and white or a variety of tones. You can even get prints of the same image in color, b/w and sepia if you wish, for instance. Some photos lend themselvs well to b/w, others don't. For example, here's the same photo in color:
And in black and white:
Even though the photo is meant to be a "mood" image, we prefer the color version - it has more visual impact.
While it has become more common for wedding albums to be made up of all black and white photos, we're seldom asked to do so. (Some photographers only produce black and white - we're not sure why, unless it's a style or "branding" choice the photographer has made.) Your photos can be all color, all black and white, all toned, or any combination of the three. There's no reason to make that decision ahead of time, unless you're 100% set on how you'd like your photos to look.
And in black and white:
Even though the photo is meant to be a "mood" image, we prefer the color version - it has more visual impact.
While it has become more common for wedding albums to be made up of all black and white photos, we're seldom asked to do so. (Some photographers only produce black and white - we're not sure why, unless it's a style or "branding" choice the photographer has made.) Your photos can be all color, all black and white, all toned, or any combination of the three. There's no reason to make that decision ahead of time, unless you're 100% set on how you'd like your photos to look.