Im sure you'll be a wonderful chicken mummy to be ! we have raised chickens from egg to hen no worries, my only piece of advise would be make sure your run is COMPLETELY animal proof and if need be double wire (we recently lost two precious pets to our neighbours dog).
Make sure their brooder is warm enough - thats the first place you'll start to loose them , if they are all huddled together under the light they are too cold , if they are running away from the light and cowering as far away from it as possible , they are too hot. Both of which will kill them. if possible it is best to put the lights at one end so that if they are feeling hot they can move away from them , and if they are cold they can move nearer. We just had ours in the hot water cubard up in the attack with a double headed lamp on them and they do fine up there - but we are in a very warm and humid climate so you may need alittle more.
Chicks are stupid - if you give them an inch they take a mile and kill themselves! , make sure your've put some pebbles in the bottom of their water dish (unless you have a special chick waterer) so that they can stand ontop of them and poke their beaks into the cracks between the pebbles to drink. otherwise they'll fall in and drown.
What are you bedding them on?? if using sawdust/wood shavings you are better to wait until they are a couple of weeks old and they know what food is otherwise they are likely to try and eat it , which will clog them up and kill them.
When they first arrive you may have to show them what food and water is - just dip their beaks into the food and water and they'll get the idea.
Make sure they have some traction to stand on , not just newspaper - otherwise they are likely to end up with spraddle/splay legs (which can be corrected , but it is a long road for a first time chick mummy) we use a cloth nappy flat for them to stand on , other people use wire (I dont like this as I think it is harsh on little chick feet , also their feet can get stuck in it) other people use straw - the possibilities are endless!)
chickens like to scratch at food , chicks included - you are best to use a v shaped chicken trough to feed them , or a food dispenser with little compartments along as if it is in a bowl it will get scratched everywhere , and if you have many chicks in the same pen , the bigger ones will squeeze out the little ones , you will have to watch that they dont get pushed off the food. A v shaped feeder removes this problem.
You could put a little rescue remedy (we just put a tiny bit of whisky in ) their water to help calm them down after their travel and help them re coup.
do sing out if you need any help at all - there are lots of us here with chickens on the brain :) good luck!