Searching for Quailty A/V Carts?

Tyrson asks: "I work at a university and we are looking to purchase new A/V carts. At the moment we have the plain and simple shelves-on-wheels and the nicer multimedia display carts. The simple carts are sturdy yet insecure and lack useful features. The display carts are secure and useful yet built from weaker materials that only last a few semesters. We are looking for A/V carts with useful features preferably built from metal or plastics. After googling it and making some phone calls I had found several good carts that were sadly upwards of $1,200 apiece. I don't expect them to be cheap, but $1,200 was a little to steep. Does Slashdot have some suggestions for us?"