It all depends on your location too, I live in CT so searching Craigslists is sometimes slim pickings, just out of curiosity i did a CL
search in florida and there are thousands of people selling great stuff, huge gallons for very cheap. It's amazing how your location plays into it. Happy hunting though. The only thing i can say is don't rush it. Look on CL
and ebay for hardware, its the best way to get a great deal.