Someone told me that the body expends 100 calories warming up eight
ounces of cold water to body temperature.
 Is this true?  IF not, what's the actual calorie figure?

Dear PCVentures, 

No, it is not true. 

It is true, that drinking ice-cold water would burn more calories than
drinking tepid water. However, the difference is negligible. 8 ounces
of ice-cold water (1 degre celsius) would cause the body to expend
about 9 calories. If the water is not as cold (and it usually isn't),
even fewer calories would be burned.

You can read more about it at : 
How Stuff Works: "Does drinking ice water burn calories?" 
<http://science.howstuffworks.com/question447.htm> 
(I apologise for such a short answer, but the explanation given by
HowStuffWorks is so great and so full, that no additional information
is needed here, and naturally, of copyright reasons, I'd prefer not
quote the whole article).

I hope this answers your question. Please contact me if you need any
clarification on this answer, before you rate it.

nice - thanks!

Thanky ou for the rating and the tip!