Hi guys, I have just bought my first Mac today, went for the 13" Retina, over the moon with it! I just have a question about external hard drives, i'm currently looking at this one - http://www.amazon.co.uk/Passport-1TB-Portable-Hard-Drive/dp/B0081LDYW6/ref=cm_cr_pr_product_top Is this compatible with my Macbook Pro? Will it need reformatting? I need to transfer some files from my PC, will this be possible? Sorry if these are stupid questions, i'm just new to this whole mac thing! Thanks!