Before you scream "get 4 GB's!", please look over my needs. I'd be using my 13" base model MBP for mostly basic stuff for now (web, email, itunes, youtube, etc). However down the road I plan to get into HD video with a Canon HV40 camcorder. Would I notice a difference with 4 GB's down the road with video editing? I know 2 GB's is plenty for the simple tasks previous described.