If you want the Mac to shut down gracefully ensure that the UPS has a USB 
connector. When this is plugged in to the Mac your Energy Saver Control Panel 
will detect the UPS and display extra settings relating to shutting down the 
Mac if the UPS loses power from the mains. It doesn't require any 3'd party 
software or extensions to control this.
I believe most of the Belkin ones have this.

On 06/02/2010, at 3:40 PM, Mike Fuller wrote:

> 
> Thanks James
> 
> My intention for a UPS is purely so I can shut down the Mac in a reasonable 
> way - I'm not interested in running it for long during a blackout. My primary 
> intent is to protect the Mac from sudden power fluctuations.
> 
> And my laser printer would certainly not be on the circuit.
> 
> Cheers
> 
> Mike
> 
> On 06/02/2010, at 3:26 PM, James / Hans Kunz wrote:
> 
>> just watch....how long does the ups has to provide the power in case of 
>> power failure
>> 600va sound good as power rating but it seems the batteries can only delived 
>> that for a few minutes!!!!!!!
>> check the tech info
>> if you intend to connect the printer as well then you have to provide for 
>> surge power if its a laser printer
>> 
>> i'm using a 1600w unit & my powerbook, modem, phones can run for 3h of 
>> battery......
>> sometimes an inverter 12 to 240v, large battery pack (carbatteries) & 
>> charger unit can can keep going your mac for hours......
>> James
>> 
>> 
>> On 06/02/2010, at 13:56, Mike Fuller wrote:
>> 
>>> 
>>> I should be receiving my quad core iMac 27 next week, after a shorter than 
>>> anticipated wait :-)
>>> 
>>> I want to look after the power input and will be getting either a good 
>>> surge protector or a UPS.
>>> 
>>> My query is what is a suitable size UPS for this computer considering the 
>>> max continuous power is listed at 365W for the 27"?
>>> 
>>> I can get a 600VA for a reasonable price but the cost accelerates above 
>>> that. Along with the iMac I will probably only be running the modem/router 
>>> on the UPS.
>>> 
>>> Cheers
>>> 
>>> Mike Fuller
>>> 
>>> 
>>> 
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>> 
>> SAD Technic
>> Video Productions, Electronic repairs
>> U3 / 6 Chalkley Pl
>> Bayswater WA 6053
>> +618 9370 5307,+618 6262 5707, 0414 421 132
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>> 
>> 
>> 
>> 
>> 
>> 
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