I have 3 kids, my first is 8 and she potty trained herself in less then a weekend, my second is a boy who is 3 1/2, he finally started using the potty about a week ago! I never rushed, we talked about it and then last week he woke up and didn't want to pee in his diaper, so I reminded him that he can use the toliet, and the light finally went off!! He has been using it since then and a diaper at night ( he has asthma and the meds he is on make him sleep like a log) it will be awhile before he is dry at night. My third is also a boy, just over 2, and since brother went in the potty now he wants to also, so if all goes well I will be daytime dry before the new year!!
I believe that potty training is a childs choice, and when they decide to go it is just going to happen, but if you push it it takes FOREVER!~! So far two of my kids have trained themselves in less then a weekend, and the third one is trying to follow in their steps, as soon as he fugures out how to get his pants off lol. Good luck, and I believe that for the beginning it is best ot use pull ups, as a working single parent I really don't have time for all the extra laundry.