Seems like a lot of kids go through a phase of resisting diaper changes.
My son is now 3 years and 3 months, and just in the last month or so has been really good about peeing in the toilet...he likes to do it standing up! Poop, OTOH, is just not happening. I get really frustrated because he just plain does not mind sitting in it indefinitely. Oh well, I figure he'll get there eventually. My point here is, I understand how frustrating this whole toilet business can be, and I sympathize with you.
Videos...he really likes the "Bear in the Big Blue House" potty video. Has it made him any more or less interested in the potty? No, I don't think so. But it is entertaining. There's a book that you can get with it, too.
I gave up on cloth diapers from age 18 months till after his second birthday. Disposable pull-up pants were just much quicker at that time, as changing him was a huge screaming match, and while I do care about the environment, it was more
important to me to avoid a situation where I'd lose my temper. I did pin him with my leg, but would try to keep my voice calm and talk to him about what I was doing and why. Same went for brushing his teeth, which he also hated but was not negotiable as far as I was concerned. After his second birthday it got easier, so we went back to cloth diapers and he generally doesn't resist.