can you suggest some good calipers?

[Nate]

eh?eh?

[ddegroff]

Lange (http://www.amazon.com/Lange-Body-Calipers-Calibration-Block/dp/B00029P432/ref=sr_1_16/102-8159212-4504929?ie=UTF8&s=hpc&qid=1179539753&sr=8-16)

One of the best, but probably way over the top.

Accumeasure (http://www.amazon.com/Accumeasure-Fitness-2000-Caliper-Chart/dp/B0007ZAM6U/ref=pd_bbs_sr_1/102-8159212-4504929?ie=UTF8&s=hpc&qid=1179539753&sr=8-1)

These will work great for your needs.