I just got my MacBook pro, (15 inch, 2.4GHz Intel Core i5 processor, 3MB shared level 3 cache, 4 GB of 1066MHz DDR3 SDRAM, 320 GB 5400 rpm hard drive). I am very computer unsavvy. Not a gamer, I check my email, want to back up my iPhone, and use iTunes, store some pictures/music/videos. Does this laptop have enough memory, etc. I know this is probably a stupid question, but I have no idea! Thanks in advance!