LLyons
I build my own PC's, mostly to get up to speed with current technology.. Would like if you share your thoughts on a few items...
So far, I plan to use an i7-5820k, an ASUS X99 Pro or a Gigabyte GA-X99-UD5, a Deep Cool GAMER STORM Lucifer fan, 16gig of Corsair 2666, and a 200gig solid state drive from intel. That said...
If you want to save money, consider if you really need/want a 6 core setup. Are you hitting it hard enough to use it? 4 cores gets you a lot these days. Now that said, maybe you just want 6 cores, that's fine, I went that route myself, just saying it may be an unnecessary expense.
The ASUS X99 series is a good choice, if you want to save a bit the X99 A trades off very little and costs a bit less.
2666Mhz RAM is not very useful. Intel chooses the standard RAM speed for a CPU for a good reason. So no real need to spend on more expensive RAM. Also be careful if you opt to, the Haswell-Es are temperamental about higher RAM speeds in many cases. Make sure you get RAM in a set of 4, E series are quad channel.
I wouldn't get an Intel SSD, too pricey and these days they use Sandforce controllers rather than their own. For SSDs, can't beat Samsung these days. Either the 850 EVO or 850 Pro. Really, the EVO is fine for any desktop usage, particularly if you are just using it to store samples.
As Mesh said, you'll probably want more disk space. Personally I use a 512GB for OS and apps (though I do everything on my computer, not just DAW) another 512GB for main samples and a 240GB for drum samples. It isn't hard for samples to get large. I'd do the three drives, as he suggested. For the data drive, go for a Seagate SSHD, they have some flash on them and are something of a cross between SSD and HDD. Same thing for your samples drive, unless you can afford an SSD for it, in which case an 850 EVO is what you want.
2 - Any gotchas out yet on Windows 8.1 Pro and the i7-5820 chip?
Nope, 8.1 is happy as a clam with the newest stuff. You can even boot an M.2 SSD, which hangs right off the PCIe bus.
3 - Any gotchas out yet on Windows 10 and the same chip?
It's beta so too early to say, but no there isn't going to be an issue. MS always supports Intel's high end.
4 - I plan on converting to Lightning. Anything wrong with the mobo's above and adding a Lightning card?
You mean Thunderbolt? They changed the name from Lightning when it released (Lightning is now a proprietary Apple connector). I know it works fine on ASUS, and they sell an adapter specifically for their boards. Be warned MOTU is kinda Mactarded and I don't know if they support their TB stuff on Windows.
6 - Any gotchas on the general hardware configuration above?
Not really. ASUS has better firmware support than Gigabyte so that's the way I'd go (and indeed did go, X99 Deluxe here). Wish Intel still made boards but ASUS is good as well.
7 - Is there a quieter fan to use that does a really good job at keeping heat down for the same price?
Yes, an
Arctic Cooling Freezer i30. Should run you about $35-40. Arctic Cooling makes the most silent fans coolers I've yet used. They also make sure to engineer them to fit without blocking things. This one just fits, it is MASSIVE, but it does fit and does not occlude any RAM slots, or interfere with VRM cooling. It is plenty of cooling, even if you wish to overclock.
Please note that X99 boards seem to have a bug whereby they always run the CPU fan at max speed. To fix it you need to start the included ASUS Ai suite software, and toggle the CPU's fan's "silent mode" off and then back on again. It'll then spin down slowly and run per the curve you've set. In general you need to run AI Suite and have it profile the fans in the case to properly control them, and then maybe manually adjust the curves as it tends to favour cooling over low noise by default. You can shut it down once you've got it doing what you want, but on each reboot you'll need to fix the CPU fan (the others will do as they should).