I agree with Brian--you're fine for now, so wait for post-trip analysis. After the trip, check out the articles on the home page of this site, left-hand column. Keep note of the stuff you don't use with an eye to leaving it home next time (although that obviously wouldn't include your rain gear if it doesn't rain). Keep an eye on what others are carrying, especially thru-hikers (most of them go light, for obvious reasons)--you might find lighter substitutes for things you do use. Have a great time! I'm looking forward to your trip report!