I got my current range, a Five Star commercial style gas with convection range, off of Craig's list. It was 4 years old and I swear, had only been used a few times. The broiler had never been used. It also came with a huge cast iron griddle that you put in over 2 of the burners. It listed for $4300 and I got it for $550.
I've also gotten most of my dishes from thrift stores and re-sale shops. I got a wonderful Calphalon SS grill pan used on Ebay for $35 shipped. It's huge and with a little Bar Keepers Friend, it looks brand new.
Outstanding! I am eyeballing a Viking 30" range on CraigsList at the moment.