The 6100 is a tank....built to be a work horse but weighs in at 700 pounds! I bought mine new and have found it to be a great machine for my needs. There are some definate drawbacks to the fact that it isn't just a plug and play with newer computers.....like it runs on windows 95 , the software hasn't been upgraded in a decade, and it won't be. If you buy it I think Jim's plan on getting the cpu upgraded is the way to go, but that cost plus the shipping back and forth will be several times your original investment. Surely you can give it a test drive before you decide. That will help with some of these questions. If you decide to not move forward let me know, if it's close to Texas I might get it for backup parts for my machine.