I am looking for a UPS for my new 27" iMac. I also plan to have my Airport extreme and cable modem plugged into it as well. Do you think the APC 550 is sufficient? I rarely ever loose power but want to be ready if it ever does. Brown outs and spikes do occur once in a while. Would the 550 do the trick?
http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BE550G
http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BE550G