Well, ok, but please excuse my mentioning that this is a truly horrible spread for EUR/USD.
Even using a small account and a counterparty market-maker, nobody should be paying more than one pip spread on the Euro. I know it sounds like a small difference, but at three pips, one would be paying three times the necessary dealing costs every time one traded! I haven't looked at these brokers for a long time, but I'm really surprised that there are three-pip spreads on the Euro. That's unmanageable.
I recommend that you have a look at Oanda. In my opinion, they're about as good, decent, honest, ethical and reliable as you can get for a counterparty market-maker (in other words, probably not 100%, but close enough for most people, most of the time), and their spread on the Euro is often under a pip, and never more than about 1.2 pips during regular trading hours. (I still have access to my old account there, though I almost never use it, so that's one I do know.)
I hear you, but I think the logic there isn't necessarily quite right. You need to look at minimizing risk collectively, really, rather on an "individual trade basis".
It's a big and important issue, because long-term successful trading is all about risk-management.
I'm not trying to suggest that you're wrong (and you may not be, at all), but equally, don't assume that doing 6-8 pip trades is going to minimize risk. It may not. Trading with a 20-pip target and a 30-pip stop-loss - strange though it sounds! - can even work out less risky than 6-8 pip trades, overall, if your win-rate's high enough. You need to calculate this with things like "profit factor" and so on.
This beginners' book will be really helpful to you: "Profitability and Systematic Trading" by Michael Harris (Wiley 2007).
I think so, if I understand you correctly. In that nobody should trade forex with the rent-money, or money they can't afford to lose. A lot of that has to do with working out position-sizing according to your worst-expected losing runs and losing patches, and so on (explained by Harris).
One thing is for sure, though: if you're aiming at "small-sized trades" (e.g. 8 pips or whatever) a 3-pip spread will make it effectively impossible for you to make long-term profits. You'll need spreads of a maximum of about 1 pip, for that to be viable, and that's "in experienced hands".
Small-scale, frequent forex trades (e.g. targets of 10 pips or less) can be very steadily profitable, it's true, but that kind of trading also needs long hours, lots of patience and discipline, low dealing-costs, and some experience (on a demo account!). If you're interested in learning how to do it, I strongly recommend Bob Volman's books on the subject - and there's a great big chunk of one of them available free of charge as a PDF on one of his websites, if you want to try a "free taste".