R.C.
In response to your question...first of all, we started the naps before we converted my daughter to a toddler bed, so our situation was kind of backwards to yours, however, the concept is pretty much the same I guess.
For approximately 2 months before we converted our daughter's bed to a toddler, I had her napping on the couch with the lights and tv turned off. She tried several times to get up, but the result was always the same. I pretty much told her that if she didn't nap, then she couldn't get up...the fight continued a little while, but she wasn't allowed to get up, play or watch tv till she had rested, so she finally realized the routine.
In addition to not allowing her to get up, I try to give her a little "heads-up" so that she can get used to the idea and not get herself too worked up before her nap. Whether it is a tv show before or setting a timer or just giving her so many minutes and then counting down every 5 minutes, it seems to make her feel better about the idea. I think she appreciates having some control. Of course, it is control I feel okay with not the other way around.
She can sleep without the countdown, but she goes to bed easier and much happier with it.
She only occasionally tries to test it, but I always tell her the same thing.
In her case she's 3 going on 4 in June, I tried letting her stop naps, but she can get pretty cranky as well physically mean without a nap, so we have kept them manditory.
I guess my biggest advice is to decide what your list of priorities are, and then stick by whatever you choose. For us the countdown has helped alot as well as giving her a few choices, always according to what I see appropriate for her age and the situation.
My "goal" was to have a better evening...Jordan has a tendancy to start screaming and occasionally even tries to force you to do what she wants when she hasn't had a nap, so it is required; no matter how much she fusses.
I was willing to hear her fuss for about a week till she realized it wouldn't do any good, then things got alot better. She's SO much happier now.
She sometimes tries to escape her naps, but once I tell her in a firm voice that "it is nap time" she calms right down and gets into her bed willingly and usually sings or talks herself to sleep. We've even had the occasional time when she told me that she wanted to go take a nap, that she was tired and asked if she could watch a special movie when she got up, so that has been nice also.
We seldom have the extreme meltdowns anymore either, unless she hasn't had enough rest lately or no nap.
I hope this helps.