Olympic distance I tape 3 gels on my top tube and tear them off as I use them, I then put the empty package in my back pocket. On the run I put one in my back pocket in T2. Water or Gatorade I have in my aero bottle. Unless its really hot that’s all that I will need. I will drink from the aid stations for the run.
HIM distance bike, I will take a gel flask and put it in my back pocket, The Hammer Gel flasks will hold 6 GU’s. I have also taken a Cliff bar with me and ate it about half way through the bike ride. For fluids on the bike, I start with my aero bottle full of water and then grab a bottle from every other aid station. For the run I get a gel from every 3rd or 4th aid station and a drink from every one. Some races will have gels on the run and others won’t, check and make sure for your particular race. You will probably need no more that 4, 2 or 3 is the likely amount.
Try all of the gels, drinks and bars before you race. Practice to see how much you can take without getting sick (so you can catch up if you need to) and how little you will need to get by.
For Gels I like GU, Hammer gel, Cliff shots, and Powergel in that order, there are many other to try too, find the ones that work for you. Practice with the ones the races supply. Some others are Carboom and E-gel.
For drinks I like Gatorade and Accelerade, there are also many others for you to try too.
For energy bars I like Cliff bars, Power bars, Gatorade bars and I just started to work with Snicker’s marathon bars, so far I like them but they may get sticky in the heat.
Books I like are Triathlon 101, Triathlete magazine’s complete triathlon book, Triathletes training bible (a difficult read) and Going Long. Training plans for multisport athletes is great for beginner training plans.
Websites, Gordo’s site, www.gordoworld.com, make sure you read his four pillars. www.trinewbies.com is good too as well as this site’s resourses.
AT is aerobic threshold heart rate, it is about 20 beats below lactate threshold. I believe in testing to determine LT but a conservative way to start is to take 180-your age to get the top of your AT. So for you that would be about 142 for running, add 5 beats if you have been very active for the last 6 months. That route of training is pretty controversial around here but you need a place to start. Heart rate training is a whole other argument.
Sorry to have written a book here.
jaretj