I was just gifted a new MBP by my mother who hadn't used it once since she bought it in December. Great right? Well...yeah...its great, but its only got 512 MB of ram. What I want to know is if there are any risks involved in buying memory from anyone but apple? I read the thread about that cheap ram and understand that I should probably buy memory that is guaranteed to work in my laptop, but is there any risk of frying my motherboard or causing any other permanent damage? Also, am I running any risk of voiding my warranty or my Applecare plan?