Toilet Training and Toilet Seat Attachments

I've been reading p a lot of potty training lately. My daughter is now 26 months old and most of her playgroup friends have already started potty training, with varying levels of success. I know that, while most toddlers start getting ready and interested in this transition at this age, some kids aren't ready til much older. As for my daughter, I thought it would be worth a try.
I don't know yet what strategy to take. There seems to be a lot of techniques advertised on the web, some even claiming to be enable you to potty train your kid in three days! I am extremely skeptical of those claims, and I'm setting no such expectations on me and my daughter. I'm still reading up on the best ways to go about this, but one thing I already know is that I'd like to skip the potty and have her make a go at the toilet directly. I'm planning to get one of those toilet seat attachment for kids– either one of those simple toilet seat you put on top of your toilet seat, or one of those with built in ladder
so she can get on the seat on her own.
Do you have any recommendations?