I am going to look at this http://semo.craigslist.org/tls/2811050841.html next week. how can I tell when the tanks are due for testing? It comes with the cart, 5 torches(1 harris, 1 Victor), regulators, hoses, 1 O2 tank with some in it, 1 acetline tank and 1 argon tank both empty, ect. I am thinking it my be worth the $ ( i will try to get him down to $150 or 200 if I can) even if the tanks are out of date. he bought them used so I don't know if he hase any paper work.
What do you think? Thanks for any info

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I would say that is a great price for what is offered and would not wait another minute in getting there. Just be sure the tanks are not maked on the ring (watch the video)
You can tell the guy the tanks will need testing and get him to come down (most people do not know how to tell and if you present yourself as an authority on the subject they will agree)
For that price you better hurry