Alrighty, a few things about your trip: 1) Try not to bring white clothes, it's really dusty and dirty so white isn't exactly practical. 2) How much money are you bringing? 3) I'm probably going to have to spend the first few days hanging out in Accra so I can register for classes, then we can travel around. 4) Bring a book because there will be a lot of waiting time and you'll want something to read/do. 5) Don't bring anything valuable, like watch or jewellery, except for a camera---there have been lots of thefts unfortunately so it is something to consider, but a camera is just a necessary risk that you have to take.
That's all I can think of for right now, love you and can't wait for next week! XOXO