Dwayne,
I've tried all different models of probe thermometers and I've found
the best to be the Thermapen. It is digital, accurate, super fast,
and the probe is very thin to avoid tearing up the product being
measured. The only disadvantage is that it's very pricey. You can
purchase them from amazon.com or eBay. Here's a link to the
manufacturer's website for the specs.
http://www.thermoworks.com/products/thermapen/tpen_home.html?gclid=CP78z9GUvpQCFQpjnAodOwdIUg
Like you, I also started weighing ingredients as a result of reading
Peter's fine book and subsequently upgraded to a My Weigh KD7000. It
will handle up to 15 pounds, it's very accurate and can weigh in
pounds, ounces, grams or kilograms. It has a tare feature and a hold
feature. Here's a link to the product specs and the place where I bought it.
http://www.oldwillknottscales.com/index.asp?PageAction=VIEWPROD&ProdID=264
Happy Baking,
Brett