K.H.
well i am not sure that i have the answers you need, but i will share. when we became pregnant with our first we decided together that we wanted one of us to be at home with our child. at the time my dh was making more money but he was laid off before i gave birth, so when we had our daughter, i continued to work & he stayed at home. for us it was wonderful, & the right decision, although there were plenty of people that wanted to voice their two cents. but aside from that it worked well for us. i think that my (our) biggest challenge was that i really had to lay out what it was that was expected of him (hubby) if he were going to be the one staying home. bc there is a difference in being a stay at home mom/dad & being a babysitter. i fully expected him to be responsible for the everyday cleaning & household chores. as well as most of the grocery & household shopping, & also things like routine dr. visits & such. of course i had my hand in it all too (i think being a woman it is natural) but i expect him to be the main force behind it all. it worked well for us as long as we both knew what was expected of us.
now we have switched roles, & i am a sahm & hubby works but at that time in our life, it worked well for us.
good luck!!