Ok here is my situation; I run a small 3 man office, we have one Apple Powerbook running 10.5 (mine) and two PC laptops with XP. We are all running on an 802.11 b wireless network (one PC only has a 'b' card) - Airport Express. Currently we have no backup solution!! I have just ordered a WD 500GB external drive USB2. What do I need to do so that we can all back up to this drive and all read each others files. Any ideas on back up software that will make the task simple so everyone will do it regularly, Mac & PC? I use CCC on my home Macs but I don't think that route going to work here?