Good list, heapsreal. I'll just make some more or less random comments based on skimming the thread (concentration is shot).
NOW d-ribose is pretty good. I've also tried Jarrow, and found no difference between them. Ribose gives me a definite, slight but noticeable, muscle boost for a few hours after taking it. It's kind of a strange supplement in that once it wears off, there is no noticeable improvement or worsening, it's just like you go right back to baseline, no harm no foul. Maybe there is some metabolic harm at a deeper level, not sure, but from taking it daily for a few months I noticed no adverse effects. One strange thing about it is that if I take a second dose later in the day, I invariable get a really bad, strange headache that night that lasts for hours. Don't know what that's about - I just stopped taking afternoon dose, problem solved, lol.
Personally haven't liked "Dr.'s Best" supps. Was taking a zinc carnosine (pepzin GI) from Jarrow that was great. When they discontinued it, Dr.'s is the only brand remaining, and I noticed it's definitely not as good as the Jarrow was. Might just be that one supplement and their others are fine, but that made me wary of DB's supps from then on. Would rather pay just a little more for Jarrow, Solgar, Now (if I have to), Country Life, etc. Not really impressed w/ Source Naturals for most things, either, YMMV!
The absolute best deal I've found on co q-10 (which can be really expensive) is the Jarrow 200mg. When I was taking 100mg, I just took half the capsule, was really cost effective compared to other brands, and good quality, too.
A supplement that I've really been impressed with is Eleuthero (Siberian ginseng). I buy the Now 250 capsules, take 2 or 3 a day til roughly half are gone, then take a week or so off, then finish the rest. *Definitely* notice when I go off it for that week, but supposedly it's recommended to take a break every 6-8 weeks, so I try to do that. If I could take withania or schisandra I definitely would add those. Think in the long run those kinds of adaptogens are going to provide more benefit for adrenal cases than something like acetyl-l-carnitine, which can give a good mito brain boost, but which I probably wouldn't take long term. Tends to leave me feeling burnt-out afterward, but again, everyone's different.
Would be careful with lipoic acid and NAC, if you have mercury issues at all they could be problematic taken indiscriminately. Have known of a couple people who got a great boost on ALA, then kept taking it at pretty good doses til it overloaded their detox pathways or something and backfired on them pretty bad. Those kinds of backfires can be nasty. Not saying it's a bad supp, just would say to use caution.
I've been taking 5mg of methyl b12 for almost a year now, along with B-right, but haven't noticed much difference one way or another. The folates seem to cause depression in me, don't know why or how to counteract, so I haven't been doing the methylfolate portion of the methylation protocol. But was expecting more from the mb12 and have been a little disappointed. Any more than the 5mg and I started getting heart palpitations at night, so I quickly cut that back to 5mg.
Again, just some random thoughts, hope they're useful. Tell us how it goes.