Re: External HD question
You should be able to do that no problem. I would recommend a tool called gparted. You can download the live cd and burn it to a disc and boot from it and it should be self explanatory from there.
PC: AMD Phenom 9950 2.6ghz Quad Core, ATI Radeon HD 5770, 8gb DDR2 RAM
Phone: Apple iPhone 5s 64gb (jailbroken)
Handheld Games: Nintendo 3DS XL, Tapwave Zodiac 2, GamePark Holdings GP2X F100