I wonder if anyone knows of a site that has a recipe calculator - put inthe foods and quantities and t spits out the blocks type of thing

I don't know of one specifically for the Zone. 

I know that there are some sites that will calculate nutritional content, and all you would need to do is convert the grams to blocks.  You would have to keep in mind that protein from veggie sources (other than soy) is not counted in the Zone, and that fiber is subtracted from the total carbs to yield net carbs. 

I sometimes go to sparkpeople.com and use their recipe calculator. then I convert it to blocks.