I don't agree that he's too young, but he does have to be ready. My son is 18 months and started showing signs a couple weeks ago that he was interested so we bought him a potty. We don't have any belief that he is close to being potty trained, but for now, we're encouraging him to try.
For a while we've been "talking" about it. If he's in the bathroom with us or when changing his diaper, we will say something about how pee pee and poopy go in the potty.
We got him a potty that has sensors in the bottom of it and when he pees it plays happy music, which he loves. We also got the "Elmo's Potty Time" dvd (although he really doesn't watch t.v. except maybe 5-10 mins a day).
He started showing us his understanding of it by going to the bathroom door. 3 times in one week he went to the bathroom door (which we keep closed) and toyed with the handle, then pooped.
When we first got the potty chair, we put it in the living room, kitchen, his room...where ever we were, but he thought it was a toy and just played with it. Now, we keep it in the bathroom. He will go to the bathroom door and we will take him in to sit on the potty. 9 times out of 10 when he does this, he pees. He hasn't yet pooped in the potty, but I'm sure it will happen eventually. The other night I think he was going to poop in the potty but I just couldn't get him there fast enough and he went in the diaper. I dump the poop in the toilet cleaned him up and then we flushed the toilet and said "bye bye poopy".
When my son is successful with going in the potty, we give him a couple m&m's (or similar) as a reward. He knows that when he goes he gets them because he runs to the counter and points to the container.
As for pull-ups, I'm not a fan. I don't believe they aid in potty training since they act as diapers and wisk the moisture away. In the spring/summer we will let him play outside without a diaper on (wearing shorts with either nothing or underwear under them). Kids don't like the feeling of the pee running down their legs or being in wet clothes.
As for daycare, most daycares should have the equipment for potty training and if you let them know, they should participate in it. Also, don't forget to have a potty seat for grandma's house (or anywhere else that you are often visiting). They make fold up seat inserts ones that are easy for travel and are around $15.