I was/am currently in the same situation. My DS is 2yrs and we found out that day-care liked them to be TT'd to go into the next room. Some of his friends had already moved but DS didn't seem ready always been in sposies, but at the same time miserable because his mates had gone. I found I wasn't ready (not saying that you aren't), I wasn't ready for the accidents (house fully carpeted) and being pregnant with number #2 and working part time. I planned to do it later in the year when we had moved into our new house (tiled floor) and I was home with #2.
Then I realised how miserable he was and had been buying a few cloth nappies for #2 and tried them with DS. I realised it wasn't so hard the poo's and wee's and I could deal with it. So I took the huge leap and sent him to day-care with normal undies. Yes more washing but a firm believer that he had to have the accidents to realise that he needed to go, to feel the wetness and put two and two together. My woohoo moment was when we went to friends and DS wasn't very vocal about needing to go we had to watch for his signs. Both occasions he needed to go he sai "Mommy potty" and sat on the toilet and went. It has taken him 4 weeks and about 2 weeks ago he woke up and was so much happier and we have 90% dry weeks. He does have some accidents and he gets so so upset with himself little poppet. At night he wears Aldi's pull ups and we call them "special pants" no wee's and poo's. We tried the cloth training pants but he didn't like them as much.

Sorry way longer than I meant, but I would say straight into normal undies ..make a big deal of it "you're in your big boy undies let Mommy/Daddy know when you need potty/toilet" We also do the big high fives after and hugs and "big wee's talk" lol

GL