E.M.
First, if you want to wean, go for it. But if you are just doing it because you think 2 is the magic cut off date, don't let that dictate when you wean. I, personally, because it worked for me and was what I wanted, let my kids self-wean. My oldest was almost 3, my youngest 3.5. So that is an option.
I got them both started on rice milk/coconut milk, then cow's milk. I started with a cup of 3/4 pumped breastmilk, 1/4 rice milk and slowly upped the percentage of rice/coconut milk. It took quite a while to transistion. I initially tried to just give them rice milk, that was immediately rejected! I just looked at the whole thing as a process rather than something immediate like the whole "broken boobs" method.