You might consider that as long as a baby is nursing four or more times a day there is no need for any other milk at all.
Also, if you want to take the introduction of dairy slow so you can judge his reaction, try yogurt or cheese first. YoBaby is a good brand. Yogurt is more digestible than plain milk and has probiotics that milk doesn't. That also eliminates the need for a bottle which would later present another 'weaning' stage - just go straight to a sippy if you need to offer beverages.
Plus, you should know that there's no magical need for cow's milk that suddenly arises at the age of one. Or any age. Cow's milk isn't actually a necessary part of the human diet at all, if you want to wait or just not worry about it, it's ok. My five year old has never had any plain milk and probably never will. I don't drink it either. People can live and be perfectly healthy without it! :)
My daughter is one, and we are still nursing. We love it too, and I am glad as we come into the winter flu season that she is still receiving my antibodies for her protection. (btw, adding coconut oil to your diet can make your milk even more protective for him, and do the same for you as well).http://www.emaxhealth.com/4/689.html
I will continue to nurse til two at least, because of the recommendations of the World Health Organization and the Academy of American Family Physicians - they advise parents that a child weaned before the age of two is at increased risk for disease.
There is a wonderful community of breastfeeding moms at http://mothering.com/discussions/forumdisplay.php?s=&..., they also have a Child Led Weaning forum for those of us that do not practise mother-led weaning.