Hello everyone, I am new to this board. I recently got a Macbook and have a iPhone and iPod shuffle. The thing is there isnt enough usb ports on the Macbook so i had to get a hub. The hub i got IS self powered and does not require a external power adapter. My concern is that I am withdrawing too much power from my usb port through this hub. It is a 4 port hub and a External HDD ( has own power supply), Optical mouse is connected to it. also I charge my iPhone and shuffle via the same hub. I am afraid that there is power limit feature and it will fry my computer. I notice if i boot in boot camp to windows. Windows will display a error message telling me, I am not allowed to have this many device drawing this much power..... Anyone know if I should be okay as long as OS X doesnt give me a message or should i really consider getting a USB hub with its own power adaptor? Thanks.