Just starting out in the Waikato

Hi People, in an ongoing attempt to keep my daughter away from drugs and alcohol, but mostly away from boys (She's 17) I'm taking her out walking this year. We are a family of "pro" campers (we don't have carpet in our tent, but we have considered it :) ) and this year we visited Waikaremoana. Now there are only two things to do at Waikaremoana, fish and walk. I don't fish in fresh water, so we walked. Surprisingly (as a Dad) my oldest quite fancied walking around the lake, so we resolved to doing some "build up" hikes, with a plan to do the lake in March. Last weekend we headed up Wairere falls, then inland for 30 mins, then north for about another 30 mins, then turned around and headed back. This weekend we've been recommended a loop track from Waitawheta, I think it is the beginning of the north-south? anyways, I'm completely green ! Never done any of this before (done plenty of hitch hiking about a million years ago). This whole "going bush" is new. So what do I need? I already have a mediocre pair of boots for both of us ($300 from snogum) a pack for each of us (from bivouac) and thermal underwear (I'm an avid motorcyclist :) ) Also I have a two person tent that weighs 2.5kgs, and sleeping bags that weigh 1.7kgs. I guess what I am most interest in is jackets and clothing general, survival "kits", first aid kits, food and/or cooking recommendations, navigation tools. What do I *nned*? and what would be *nice to have* ? any help very much appreciated. Paul.