I have 3000 hrs of military flying as non Flt deck crew - I would hate flying without my own headset, hygiene being the biggest issue - you are not going to die from other's germs, but it's a great way to ground a fleet with colds and flu. So when I started my PPL it was a priority and DC headsets are generally what the RAF use. Books can be bought via www.abebooks.co.uk. I have the full series of AFE PPL books and they are in almost new condition. The various Q&A books are worth the expense as they are the exact questions you will face in the exams. Flt computers can be bought on eBay for less than half the new price. I have several nav bags etc from my previous flying exploits, but a headset bag is sufficient In the early days.
Make the most of bashing the Cct it will hone your familiarity with your 'office' and give you confidence with basic RT procedure. Most of all enjoy both the good and the bad days and respect the weather.