RE: co-sleeping and crib?
Sarah nursed to sleep until she was 5 months old. I tried following the Weissbluth recommendation of putting her down tired and it didn't work for her. Then around 5 1/2 - 6 months, she reached some kind of developmental milestone, and was able to stay awake after the last feeding of the day. I could then start to lay her down awake and she would fall asleep on her own. So I wouldn't worry about Gannon's ability to go to sleep only while nursing yet. It is many months before this will really be an issue.
As far as sleeping with you, again, I wouldn't worry yet and do what works for you. We actually had Sarah's crib in our bedroom until she was 4 months old. So she always slept in our room, but in her own crib. When she was 4 months (and had stopped nursing at night completely) we moved the crib to the nursery (which involved dis-assembly and re-assembly, but oh well). She was completely unphased by the move to the nursery.
One thing we did when she was tiny was put her in the crib parallel to the headboard rather than the side rails (turned 90 degrees from the "normal" way). This gave her a much cozier feel in the crib. It was also handy becasue if she leaked in the middle of the night, I could just move her to the other end of the crib and wait till the morning to change the sheet. I also swaddled her at night until she was 8 or 10 weeks old.
Maybe something in this will be useful to you. :)
If you are interested in continuing to co-sleep, then I would read up on it. There are steps to take to make sure it is done in a safe manner. You may want to check out the Dr. Sears books, The Baby Book and his Attachment Parenting book. Also, there is an active Attachment Parenting message board on ParentsPlace: http://boards2.parentsplace.com/mess...chment120.html
HTH,
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)