Yup, count me in too! A housefull of aspies here. Me, Hubby, 10 y/o DD. We have 2 adopted children too, but my 6 y/o son has MANY ASD traits and a dx of mild retardation and many sensory-issues with both kids probably due to the methamphetamine they were exposed to in b-mom's uterus screwing up their dopamine receptors. We also have a nearly 10 month old foster/adopt baby and will be signing the petition for adoption papers TOMORROW! WOOT! Hopefully we'll finalize before his birthday. I have ALWAYS loved little children. I would adopt 10 more over the next 10 years if I had the $, space, time, and energy. LOL! We do stand a good chance at adopting the baby's younger sibling that's currently still "baking" in b-mom's oven while she sits in jail. She gets out soon, but she has a long history of drug abuse, neglect, and has had 4 children taken away by CPS already. IF the social workers ask us if we want the baby, then yes, we'll take it. They usually try to keep siblings together if possible.
As for bonding with the baby, etc, just hold her, snuggle her, lie on the floor with her as she plays with a floor gym or whatever, let her nap in your arms while you watch a movie with your wife. Give your wife a break and take on baby duty and send her out to do something for herself. She'll love you for it and it will give you one-on-one time with your baby.
I find it very easy to understand and relate to children. You just have to get down on their level, participate in the things they like to do- with them, read to them, explore the rapidly growing curiosity of babies and toddlers with them, expose them to new things. As far as a 7 week old, well, she's just on the verge of an explosion of development that you'll see begin in about a month. She'll gain more control of her hands, she'll grab things, shake things, feel and touch everything, explore textures, etc. Then before you know it, she'll be crawling all over the house, pulling pots and pans out of kitchen cupboards, become obsesed with pulling your mouse chord out of the computer(hehe, my little one does this), she'll be next to you, playing on the floor, you turn your head for a moment and BAM, she's gone- who knows where, probably trying to pull that dang mouse chord out again. LOL!
Just enjoy her for now. She is at such a precious age and stage. Jordan was placed with us when he was 6 weeks old, our first "little" baby since I gave birth to my daughter who's 10. The older adopted kids were 4 and 7 months when we got them.