teekay88 good luck with the process.
I've no read Sally Donovan, so I can't answer anything specific about those books.
But I will try and answer some of your thoughts with our own experience. we have an adopted son who has been with us 3 and a half years and came to us at nearly 4. We also have a birth daughter (who is now a teenager). WE parented dd with attachment style parenting, and dd is almost certainly not neurotically, maybe on the autistic spectrum.
"thinking about the role of both affection and discipline in parenting an adoptive child."
Lots of affection, of you get the chance, a lot less emphasis on discipline, unless it is needed to keep them safe. You get the chance to give cuddles etc and show affection, sometimes, if they are upset to be moving and leaving their foster family. So although it is hard to see them upset, you do sometimes get a chance to comfort them.
"...but one thing that did strike me as very important was the point she made about shame based discipline techniques being in appropriate."
It's tough, you want them to know that something isn't helpful but not make them feel ashamed. I am still learning. I mus admit I do follow a policy of always admitting when I make a mistake and explaining it is OK to make mistakes and say sorry etc.
"I also have been wondering how you felt able to show physical affection/contact to your children to help them feel reassured and loved without being over bearing or risking inadvertently traumatising them given their past experiences especially in the early days of when your child came home"
We went swimming a lot. Our son was a bit nervous of the water so stayed in my arms. This was a good way to show affection and we had skin to skin contact in a safe and comfortable way.
"... and you were trying to bond (and in the case of discipline set boundaries)?" Concentrate on the bonding, put boundaries in that are to do with safety etc. Very young children are quite contained, you can make sure they are slightly restrained to avoid lots of issues, e.g. put things out of reach and use stair gates, etc. When my nephew was very small my mum would not move things out of his reach, she insisted he needed to learn not to touch ornaments etc! When ds was little we avoided issues by safety proofing his immediate area, obviously as they get older it gets harder. Avoid too many options for the child, they will feel safer and it will cut out too much stress.
For example pre school children rarely need to be somewhere specific. So cut out stress by keeping their schedule not too busy. Once kids get to school then they do need to be in a specific place at a specific time. Luckily, DS took to school OK, (unlike dd!) and we had few issues. But we do send him part time at first as he was under 5.
Anyway, just read p all you can but remember your child/children will be individuals and you will need to parent them according to their needs.
Good luck. 