First, no dirty little secrets, and there is no shame!! You have done what worked best for your family up until now, and it appears that is changing.
Books - have you tried NCSS for toddlers & preschoolers? Available at the library, and it is written to be either a reference book or cover to cover, whatever works best for you. You could easily browse it and take what you think might work for you guys.
Asher always had to have ME lie down to sleep with him. Even after Rachel was born, he preferred me over Micah. It was a long process, usually taking up to 45min-an hour of lying and waiting for him to sleep. I started occasionally leaving the room saying, "Rachel needs me to change her diaper" or other various things to allow me to leave for a "few minutes". It didn't work at first, and he cried the whole time I was gone. Then one day it just started working. The NCSS for T&P actually has really good ideas in this respect for leaving the room, since you can't tell Piper you are going to change a diaper.

Like, you can sit by the bed and fold some laundry, read a book next to the bed, etc. That way she starts getting used to the idea that you WILL be leaving the room, making her less likely to wake up because she knows that you won't be there, no reason to check to see if you are. kwim? Maybe her dad could sit in there with you guys, so she could get used to him being in the room as well, making it easier to transition to him putting her to bed sometimes. Now Micah takes Asher to bed every night and they sing songs together and he is able to snuggle with him for a few minutes and come downstairs. He prefers Micah take him to bed now, it's actually kind of bittersweet. I really enjoy that time of day with him, settling down and singing together. Depending on Rachel's mood at that point of the night, we have started to join them to make it a whole family wind down.
Hope you find something that works for you - and what's with the wired only thing? Strange!