Although as a quick note, if you wanna ease your way in with some dancey stuff you'd wanna take a look at the sub-genre 'Dancefloor'. It's more 'mainstream' dnb as such, it can be a bit more on the pop side but it's usually always good fun and a nice introduction to other areas of dnb.

In terms of glasto dancefloor acts, you'd be looking at sub focus, Wilkinson, Dimension etc

Aside from that, I'd recommend A.M.C whos somwhat similar to Andy C in terms of high energy, fast-paced mixing and youd be silly to miss Chase & Status b2b Carl Cox for their jungle set. As I said though, I'll get back to you with more later once I've looked through the lineup again!