nightieripper: Engage a reputable EDU ICT company to sort it out, www.newerait.co.nz are a good example. False economy using old hardware. Leasing can get over the hurdle of new kit, remember the kids / staff need rely on the network and get on with learning not faffing about trying to make computers work. Also schools use legacy apps for accounts and student management systems so Linux isn't ideal.
Both Google apps and Microsoft stack are totally free to nz schools.....
To clarify Linux wouldn't be replacing Windows on servers, teacher laptops or most of the working class PCs.
It will simply be used to resurrect otherwise dead PCs (that would otherwise be binned) and allow for a system of old hardware to be donated for FREE; no false economy here.
The school does work with those sorts of companies so would continue to apply for funding for better kit etc however the reality is there's no blank cheque and currently the school could use a lot more working PCs than it currently has.