I am embarrassed to say I did not open the box. I knew I did not want off-white because I figured it would look too yellow and dingy against the gray/white of the countertop. I should be going to see the counters today or tomorrow, along with the sink, at the fabricators. I will take pics and post. Why don't you want a darker color sink with that Cambria? I think it might visually blend better. Functionally, I prefer a lighter color sink (has SS last house) and I think if you like white better with the Cambria than the Biscuit, then just get it. I hear they all clean up beautifully. That's why I chose it...

About "really aren't looking so good together": a body can get used to anything except a pebble in your shoe. Within a few months I got used to the two tone sink/counter difference. I got an off white Silgranit. (Use powdered Ajax or Comet to keep it clean, not the Blanco product.) Later you will wonder why you cried at all. Some professional KD's have written in their articles that trying to match tones in a white or almost-white kitchen is impossible, so build it with only a few materials so that the color differences are visible everywhere and it suddenly looks intentional and planned. (A KD whose articles are on line is Sarah Richardson; she has done a lot of two hue light colored kitchens). Go with it and even try to make those two tones the ones you end up repeating whenever you have to change materials, like ceiling/wall/backsplash/counter/drawer front/kickplate/floor/sill.

Mine isn't white, but "biscuit," is that close enough? Our water is naturally hard, so we have a whole house softener. I was originally thinking of one of the darker Silgranit colors, but was told that locals who have dark sinks live to regret it. I have seen what look like stains in the sink, but they turn out to be quite superficial and come off easily. I use Barkeeper's Friend when I see a dark mark and I spray with dilute vinegar once in a while. It's only been a year, but it looks pristine.

Thanks to everyone for the great advice! It's been 3 years and this is what we've found for stains For stubborn tea stains and pot scrapes we use a mixture of 1 part bicarbonate of soda and 1 part dishwashing liquid. We mix this into a thin paste. The paste is use to clean the sink with a soft dish cloth. This is an abrasive cleaner which will lift some of the stains. For really stubborn stains, pat the past onto the desired areas and squirt a light coating of vinegar so it fizzes just a little and leave it for 5-10 mins. Wash away and repeat again if needed. To clean the entire sink, if it has no serious stains, fill it to the top with a capful or two of bleach and leave for 30 mins. We tried the dishwashing tablets too, they work well, we just found it a little more expensive for routine maintenance and we had the kind with a plastic coating which just didn't want to dissolve unless you poured a boiling kettle onto it.