I purchased an old Lenovo ThinkCentre with an Intel i5-3470, 6GB RAM, and a 500GB HDD for extremely cheap. I spent last night setting it up, installing software, and transferring files. Due to the computer being so far away from a router and lacking wifi hardware, I'm sharing the wifi connection of another computer over Ethernet, NIC to NIC. Now the machine has an Internet connection, and I can transfer files at lightning-fast Ethernet speeds. I love Debian.