Hi All, I have just started playing with my second Mac pro 3.1, (within a few months). I did own an iMac some years back, but need windows for the software I run, or the FREE software I run. This Mac only seems to have a line input which is not sensitive enough for a MIC, so I tried an home made mic amp without any success, perhaps a cheap capacitor mic would do the job, battery powered. It also seems that the front head-phone socket fails to work too, with or without the back speaker socket being used. Some of you must SKYPE (I'm not shouting?) lets hear what you do and use. Regards Mel.