Isn't potty training fun?? As you know from all the postings try to make your little guy go potty is a battle that isn't worth fighting. What worked for my three boys is letting them tag along whenever possible with the adult family members, or with other children their age (with parents permission) to "build interest" in the transition to being a BIG BOY!! We also did the potty song/dance. Everything was a bit of a theatrical production, but it helped to make the idea of going to the potty fun. Successful visits to the potty got the "Yeah, he tinkled or pooped in the potty!" song and dance.
Here are the basic things I did:
Encourage him to sit on the potty as soon as he gets up from sleeping, and roughly every 20 minutes throughout the day. Sing the going to the potty song!
Every time he sits on the potty give a reward especially for successful visits. I always gave my boys stickers. They loved the stickers, and would stick them on their clothes, arms, hands, and sometimes foreheads. :) I disagree with using food (cheerios for target practice, or M&Ms, etc to eat as a reward). Sing the "Yeah!! He used the potty song".
Take him to the store so he can pick out BIG BOY UNDERWEAR. Make a big deal about it. Do the "we are going to wear big boy underwear" song and dance. The idea is to make him want to not wear diapers anymore.
My youngest was the hardest to potty train. After much frustration and accidents I explained to him that if he wanted to be a baby and wear diapers instead of going to the potty like a big boy that was ok. My hubby and I made sure not to be negative about it, and everytime he went in his diaper we would say something in a positive manner about how going to the potty would be so much better than having to have a wet uncomfortable diaper. After a couple of weeks of this he finally decided that he was ready to be a BIG BOY and go to the potty. The rest is history.
By the way I did find some vinyl training pants at Target. They were very uncomfortable when he wet them. And I still had to pull out the mop, but they really seemed to help.
Good luck!!