M.J.
I wouldn't worry about this now, honestly. I wouldn't even think of trying to train a boy until at least two and that's only if he was showing a real interest in it. Potty training is a horrible process -- took forever with our oldest (boy, who had zero motivation and didn't train until he was three ... still had accidents until he was six) and even when our second child (girl) asked to use the potty when she was two and did brilliantly with training, it was still a month or two to finish up training daytime.
Skip the Train in One Day programs unless you have an easy, passive child who pretty much does whatever you suggest. We tried that with our oldest and still laugh today about how silly we were using a peeing doll, throwing potty parties, etc. Our son looked at us like we were nuts and he didn't even train!
Also skip the special potties. It's more practical to just use a potty training seat on top of the regular potty. Get a step stool for climbing up. A lot less messy than a special potty and your child learns right on a regular one.
I would also collaborate with your son's daycare provider. They'll usually have a preferred way of handling training and can give you pointers.