To set up a currency TRIANGLE ARBITRAGE transaction what procedure would i set up through a bank ( it would'nt be through a forex broker)? Checks, Money Orders (denominated and converted in multiple currencies)? My major USA bank does not deal in speculative investing?

Answer
Triangular arbitrage today is often done by computer programs by the big players, so I really don't think there's going to be much opportunity in it. Plus, you have to think there's going to be a transaction cost each time, which will really eat up your profits unless you're doing serious $ trading. If you are set on doing currency trading, you can try http://www.forex.com

Do forex robots really work has anyone tried one?

Answer
Do yourself a favor and ignore any answer that includes a link to any forex site.

Forex robots, Iraqi dinar, and penny stocks are the most frequent scams on Yahoo Answers.

If anyone had a robot (or system, or EA) that produced reliable profits, they would use it to trade themselves wealthy. They would not give it away. They would not sell it and arbitrage away their own profits. The concept is ridiculous.

Testimonials and internet reviews can be fake. Past track records can be fabricated.