First thing you need to specify is whether you are measuring only AC current or require AC AND DC. Next, what is you maximum current requirement? What kind of voltages are in the cables you want to measure? Some clamps are not 'insulated' such as the Tek unit below, but I doubt any of the HANDHELD units are NOT
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There are many clamp meters that can easily range into the $200+ range depending on sensitivity/accuracy.
I use an extech ma220 which provides a 40A range which can resolve 10mA steps (doesn't mean it is accurate to 10mA).
I also use Tek AC/DC current clamp and amplifier (older AM503B system with an A6302) that hooks to my scope (50MHz bandwidth) for measuring realtime current activity with various switchers and loads. I use it a LOT more than my handheld current clamp.
The extech is very handy for checking currents in various vehicle wiring without having to 'cut' into wiring. Great for finding parasitic loads etc.
cheers,
george.