HI S.,
We tried fertility treatments for about 2 years before hitting the IVF decision and chose to go the adoption route.
As you live in Wisconsin, you could check out Crossroads Adoption (http://www.crossroadsadoption.com/). We went through them in 1998 to adopt our daughters from Russia and the experience was a good one. They also have programs dealing with China, South America, and several other eastern European countries. I don't know if they deal with domestic adoptions, however. Lutheran Social Services in Appleton handled the social work side of the equation - they also have programs to adopt from several eastern European countries and IIRC they also deal with South America AND they do domestic adoptions too.
There is a different process for adopting internationally as opposed to domestic, including different home studies (the first step) so you'll have to decide early on what type of adoption you want to consider.
Our girls were 4 and 9 when we adopted them (they're now 14 and 19) but we met many parents in Russia who were bringing home beautiful babies and toddlers. We did not visit the "baby orphanage" while in Russia and I guess I'm glad I didn't because it was hard enough to see all the youngsters in the orphanage where we picked up our youngest daughter - I wanted to take them ALL home with me. The folks running the orphanages and programs in Russia were wonderful people and very helpful.
The down-side to international adoption is that the babies are often a bit older - in Russia they will likely be at least 6 months old due to state regulations on adoption - but the up-side is that there are so many children in need overseas that the wait is often shorter than it is for a domestic adoption. We waited 9 months (how ironic is that?) for our daughters after we found them and decided they were the ones for us. There's also often a travel requirement that may or may not be a factor in your decision. It was expensive, but it was worth the financial burden.
And don't forget you never know what life will bring you later. Last week our son was born by c-section despite 12 long years of infertility. :-) Our adopted children are thrilled with their new brother. Life has many interesting twists and turns...
Good luck!
L.