I'm getting an iBook in May (and if the intel one is out then I'll get that one) and I'm curious how much RAM i should get since I've never had a Mac before. The one in the store with 512MB seemed to work just fine but I'm wondering if I would regret getting that amount in the future. I dont have any plans for doing any photo/video editing. I'll mostly just be writing papers, browsing the web, using AIM, and iTunes (and various other programs that come with it). Would 512MB be enough for this? Or should I upgrade to 1GB? I know I'll see an improvement if I do, but would it be worth the money?