We are running about 150 laptops, going up to 400 soon.
We use "Lapsafe" storage and charging trolleys, we have 6 in use at the moment and more to come as "laptops" are the in thing here this week, depending on the model they can hold upto 30 laptops, get the ones with the charging units included then you don't have to use the individual laptop chargers, as that's a real pain.
3Com OfficeConnect wap, easy to setup and use.
All our printing is networked , so no problems there.