I don't know how big your tools are, so this may be very good or very bad advice. When I moved, I used a furniture dolly (the kind with the strap to hold things in place when moving) and a low flatbed trailer with a ramp, and moved all my tools myself. The major caveats to this approach are that 1. My tools mainly fall into the "benchtop" category, and even with stands full of ballast, the heaviest weighs about 250 pounds, 2. I work with steel all day, so too heavy for me and too heavy for, say, a computer programmer are not necessarily the same thing, 3. My stands were all built by me, and have enough surface area below the tools themselves to strap the stands down securely without touching the fences or work surfaces, and 4. My shop was moving from a street-level garage to a street-level basement- no stairs or hills were involved in the move.
As long as you can do it, I'd vote for moving the tools yourself- no one is going to be more careful with your shop than you are. But if you've got a Unisaw and a 8" freestanding jointer and a 20" bandsaw, you may be out of luck- in that case, I'd personally go for another poster's suggestion of using a piano moving company.
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