Great Thread.
Skydiving was/is my biggest hobby. I try to jump almost every weekend. I am up to about 155 jumps and have a C license. I jump out at skydive San Marcos in San Marcos, TX.
For those looking at getting into the sport check out Dropzone.com the primere website for skydiving (i think) also USPA.org is the US Parachutist Assoc.'s website. They have all the documents/requirements for jumping and licenses.
I strongly recommend getting life insurance first and do not jump for at least two years after your get the insurance, that way when you start jumping you have it. I tried to increase my life insurance from 150K to 500K and USAA wanted to raise my monthly pymt from less than $20 to over $150 A MONTH. Needless to say I am waiting for OCS so I will have SGLI to help cover my insurance.
As for HALO jumps check out the pictures of a person jumping from 33,000 feet with their dog! This was from this years World Free Fall Covention.
http://www.freefall.com/images/rantoul/2004/13aug/index.htm