itti's are nice but not great if you have a heavy wetter. We loved fuzzies and also bumgenius are great. Weenotions are a must for prettyness and they preform really well, fitted nappies are great as well, I never though I would love them but I do and they now make up most of our stash.
Classifieds is a good place to look so you can buy several different types to know what suits best
You will def need a nappy bag, I wouldn't say a mesh is necessary, I have one that I use most of the time in the pail but not always and I don't keep the nappies in it when washing, I put the nappies in the wash individually and chuck the mesh in for a wash with them. I use a bin from Ikea and tape a bit of kitchen paper to the lid with a drop or 2 or lavender or tea tree oil to the lid for whiffs
Bold 2in1 is a good powder to use as it has softener in it, it is the only type of softener you can use as it is clay based, any other type will coat your nappies and reduce absorbency, you only need to use a small amount of powder. To wash do a cold rinse, hot wash and then another cold rinse or 2, I do an extra spin at the end as well as it really reduces drying time
Hope that helps x