Yeah the ASRock software looks to be barebones. Depending on the build you could make do with static fan speed or limited control (as in not fully scaling with temperature), but there are much better alternatives. Speedfan is probably the most comprehensive control software right now, see the SPCR article here: http://www.silentpcreview.com/SpeedFan
. The problem with Speedfan is you have to know if the motherboard is (or rather its controller chips are) supported or not.
Speaking of motherboards, the exotic chipset is the issue. Do you need the X79 specifically or are there alternatives here? I must admit ignorance regarding Xeon CPUs. I checked socket 2011 selection and it's, well, down to this ASRock if you want smaller than full ATX.
I'll just stop dancing around the issue and say I think the Lian Li is poor value. It's 200 € over here and for that you don't even get filters, padding, wheels, a display, PSU or, well, ANYTHING. I'm not convinced the crowded internal construction with its many hard contact points won't transmit even the slightest vibrations (the linked build seemed to have pads to reduce hard contact; with WD Reds this is not the biggest issue), plus it doesn't leave room for DIY silencing. The graphics card slot is also positioned on a weird side of the very beefy mid support strut, which looks to obscure and interfere with the power connections and heatpipes/heatsink of a modern card. It's cramped, like most horizontal cases, but also with some extremely tight fits due to beefy parts. As a nitpick, the fan grills look stupidly restrictive. The CPU cooler height is the case's only plus, but even compact coolers can do well, given the correct build (see the SPCR reviews, 95 W TDP CPU). If you really need a card reader, then I guess that too, but the Lian Li is hardly the only case with one; the Node has it, other Grandia models have it, Crown models have it, the list goes on - and you can always buy a USB panel one and get a case with double 5.25" bays.
The Lian Li cases I have worked with were built "okay". Other big names can match the quality easily. The real competition is in the features, and Lian Li has had some clever ones (removable struts, bolt-on wheel kits) but also some really stupid ones (vibration contact points, restrictive grills - I think a case even used the PSU as an intake). Others have caught up quickly and usually you don't get your money's worth.
I am only a fan of the Antec P180 (RIP) and the Fractal Design Define Mini I own, so don't worry about a bias here - I'm giving you my honest, subjective opinion regarding case choice.
If you gotta have an aluminium case, or a case that looks a certain way, though, then you gotta. I can just personally think of better uses for that 100 € you would pay for the brand name and material used, as you get nothing else.
Oh, and the Silverstone cases are positive pressure, as in all-intake, not right-to-left. Makes sense in an HTPC case that doesn't get cleaned often enough while sitting in a cramped cabinet somewhere.