Just a follow on to your update.
I bought a re conditioned Logitech G11 keyboard from Ebay for $55. It made MBing so much easier because you have 16 keys (48 with cntl, alt and shift combos) situated right under your left hand. With a little re conditioning you can use your pinky finger to hit a lot of those keys. BTW I found that I only use just the 16 keys and that is enough. Make sure to do a little research first, write out a list of commands that you want to perform and their timing (cast time) and try to match those as close as you can. Then put them in some order that makes sense to you.
Another trick I learned from these forums is the Mount command, check it out, mount and dismount for all char at the same time. I bound it to one of my mouse buttons. Another is making all your char Jump and move forward and then re follow automatically. Man that was a real time saver. Just to add that I found ways to bind most of my most used commands to buttons on my mouse. Using cntl and alt for various buttons. All you have to do is make sure you know how your particular mouse buttons are labeled (button 1 is which one?) And then memorizing the commands and button combo's. Reduced my playtime considerably. Just keep reading these forums, it's what I did and I have a setup that I am comfortable with.
Understand that you WILL be slower. It just takes more actual time to make 4-6 chars do what you want them to do than just one char. Everything is slower. Vendors, quests, banking, auctioning, mailing or worse, trading stuff back and forth. Mailing is much easier than trading as far as I am concerned. A ton less clicking back and forth that's for sure. And the great conundrum hehe. To Craft or not to Craft. I mean after all you have all these chars, you can cover the whole gamut of crafting with them. But OMG what a pain in the ass it is to keep track of and talk about slow? Sheesh, you can literally spend 100's of hours just crafting. I did it for awhile, got 6 different char to Guild level crafting, and covered all the different crafts. And also did the auctioning thing (more hours spent making, listing, checking mail, re listing etc, etc ad nauseum). And all these char now have maxed out banks and tons of crap for crafting. BUT I made a butt load of money while I was doing it too. So it payed off and I do very little anymore. Just outfit my own chars and that's it. Way too time consuming.
Lastly, your last post described exactly how other people view MBing. Some are curious, some hate it, some think its great, some will call you a back stabbing cheatin son of a bitch, or words thereof hehe. Basically your gonna have to grow some thicker skin for those that want to name call. A lot of us just learned to ignore them. I tried something different this time, I made 4 hunters, all hobbit girls. LMAO you should hear the ladies oooh and ahhh over them. "Oh they are soooo cute", it actually worked, I get more good comments than BS. Shrug. When I first started doing this I would try to explain and or argue about it with people. It was like trying to swim upstream. It just got harder and harder to do. I finally resorted to good ole psychology and IGNORED them and went on doing what I was doing. Hehe, I mean why are you MBing anyways? To get away from assholes like these, right? The purpose of MBing is to play multiple char at the same time with the least amount of hassle and still enjoy the game... The key part of that sentence was "have fun". For heavens sake if your not having fun then by all means DON'T do it. But I can tell you that if you get into an instance with YOUR 6 char and beat it, you'll be hooked. It is such a rush.
I have 4 char (not 6) because I have 2 RL friends that I play with, they take care of the Tanking and healing and I DPS with the 4 Hunters. We have tried other combos but that one works the best. My friends started out very skeptical, and really complained at the time it would take. And then one day we decided to do a GS. And we went right through the whole thing. I was literally sweating at the end but had a HUGE grin on my face. You couldn't get me to quit now. Not only that but my 2 friends were so impressed that they wanted to start doing it too. So now we have 4 different teams of 2 char each. It sure cuts down on the time and we are getting better at it. So that makes 6 total 65th level char for me. And 6 more between 40-60. OMG 4 Runekeepers a Guard and a Minstrel are fricking awesome. We can run Grand Stairs with our eyes closed now, we have done it that many times. We use Skype to communicate and this is how I realized I was having fun. The last fight in GS is with Ignash and just before him is the big group of Orcs. When I or one of my friends is giggling, yes I said giggling at the end of that fight I KNOW we are having fun. And that it is all worth it. I know it sounds stupid, but that's how I gauge it.