I agree, but you make it sound difficult, which it totally is not. Honestly I don't get the controversies popping up about ... everything really. You basically just have to look at charts on reputable sites to know what to get, almost no reading required, at least not when you don't have to compromise. Buy what makes the highest numbers.
Storage don't matter much, unless he plans on shoveling large amounts of data back and forth on a regular basis. PSU don't matter as long as he gets something with a 10 year warranty and a quality fan and enough wattage to drive whatever he wants to drive. RAM ain't hard. Motherboards is a bit more involved, but in the end they all have the important stuff and you can almost base your purchase on their looks. Ditto with RAM. VRMs and the cooling of them will come into play if he plans on some serious overclocking, but that is essentially the only thing he needs to worry about. Cases can be worth thinking about if you plan on adding more storage later (as many cases only can hold two 3.5" drives), but he already has a case.
Monitors now, there is where there's fun to be had these days.
AMD entered the discussion because for some - probably sane - reason the OP gamed on a Bulldozer server chip; it threw people off i think.