I've dealt with TechMS a couple of times. They helped me set up a primary school ICT system. Good service. They gave me a good cost effective solution. Combination of PC's, Servers and peripherals.
Being an ex - IT guy from the city (Morgan Stanley, not that they knew) they didn't try and flog me off with rubbish. I like that, so many companies have wasted my precious time. You don't need that when your teaching, its good to get good advise straight away.