We have upgrade some of clients to our latest "Hotspot in a box" Products, and as such, we have some perfectly working gateways and printers for sale.

2 x DSA3100 Airspot Public/Private Gateway http://support.dlink.com/products/view.asp?productid=DSA%2D3100%5FrevB# (these guys still have them in stock at $921.37 http://buyapc.com.au/hardware-network-products-c-17_15.html?page=15&sort=20a )

1 x DSA3100p Airspot Ticket Printer http://support.dlink.com/products/view.asp?productid=DSA%2D3100P%5FrevB (these you can pick up new still for $331.65 at http://www.austwireless.com/product_info.php?cPath=29_217&products_id=401&osCsid=20126f05b09cf51fdda984af9433646b ) PS they also have the Airspot gateway at $953.37 – but slightly different version)

You will still need to add a wireless AP such as Dlink DWL-G700AP / Linksys WAP54G / Netgear WG602 to create the actual hotspot zone (or any other WiFi router that you may already have), cost should be under $100 for this