Third Federal is a bank in Ohio that has developed a reputation for low-cost HELOC's online - I had one on my previous house and I can't recall any closing costs except maybe an appraisal? The annual fee is $65, waived the first year, and they don't charge you if you close the account early (within a few years of opening). It doesn't offer its online products in all states, though -- one of the few downsides.