sorry, i meant "If I" have a compressor already (my typo) what else would ya need ?

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I have contacted them and will get a phone call back soon with a list n price of what else ya need to get strated at home for metal part sandblasting etc.  

UPDATE -
They say u shld buy a "dust collector" machine for apx $165 to connect to it so u can see what u r doing after sandblasting the parts, then buy the sand , then thats it !
Their is a sandblaster gun attachment in the cabinet already. They say u can also place all the medium in the base of the unit, which it will be sucked up, smashed into the metal, then fall back into the collector for re-use until it gets too dirty, then throw it away. So the initial investment of $165 for the sandblaster tank is needed, and they reccommend the extra $165 for a dust coillector machine that fits into the 100mm hole/connector at the rear of the machine.

I will have to pop up the store (20 mins away) and do some investigating/shopping. Shld be a neat set up !