Hey, Derek,
I do have a suggestion though.. perhaps a thread on good places to sell your gold/silver/pgms reliably (without the obligatory "sell it on Ebay" posts).
Someone tried that recently but there wasn't much response. No one really, really knows. Some of the best reports on the forum are from those that have used aragold.com. They supposedly pay 98% for karat gold. Lou has said that he got a fair shake from them and Lou definitely knows his values, probably to the penny. Also, there's a new guy on here that works for Republic Metals (I think). I don't know if anyone has tried them yet.
The idea of who is honest and who isn't is often subjective. It's a common human fraility, when selling, to over-evaluate your own material. It seems that no one ever under-evaluates the stuff, unless they are the buyer.
Instead of making value judgments, I think it would be better to post the returns you get. Name the refiner. Describe the material you sent in great detail, with photos, if possible. What do you think it was worth, and why? Include the refiner's stated charges, the spot prices, and the weights.
According to every one of the many reports I have read, Cash4Gold, and all of it's pretenders, are out-and-out crooks, preying on the ignorant. Anyone who sends material to them is a fool and a fool and his money are soon parted. Check this out:
http://www.wildforgold.com/compare.html
This company is comparing their returns with that of cash4gold. The gold price on Oct 1, 2008 was $880. This company bragged that they would pay $60 for 15.04 dwt of 10K gold, whereas cash4gold paid $31. Figure it out. Assuming it was actually 9.5K, the gold contained would be $261. Pretty poor for both companies.
Electronic materials are a different deal. Refineries lowball their advertised charges in order to be competitive. Let's assume that it actually costs 20%, in expenses, of the actual value of a particular lot of material, to process it. To be competitive with Joe's Refinery, who is quoting lowball charges of 10%, they quote 9% charges. Then, they have to steal 11% just to break even. Then, they steal another 15%, in order to make a profit. If they're greedy, they might steal another 15-20%. As long as it's in the ballpark of the customer's gray area, the customer will be somewhat satisfied and will bring in more material. The refiners are very good at determining a customer's "gray area", based on his ignorance and the state of the material. I once saw a great "insider" cartoon. The refiner had his arm around the customer's shoulder and said, "You're such a great customer, we're going to refine your material for nothing."
When I had my last refinery, I was determined to be honest (c'mon, you can trust me). This was difficult when my competitors were all lying about their charges. I ended up buying most material outright - everybody was happy. I did have a long relationship with a few big customers that believed in my honesty and worked on a recovery basis, although my charges "seemed" higher that those of my competitors.