Personal weight room goals

My personal weight room goals are to work on core and leg strength and also flexibility. Being a dancer you hold a lot of awkward positions and do a lot of isolations! I need to work on this so the technique in dancing shows! 

So for this i would like to focus more on yoga video because they tie in both flexibility and core and leg strength! 

Some video's I found are: 

http://m.youtube.com/watchv=q5nyrD4eM64

http://m.youtube.com/watch?v=3N86HmOrW2U

http://m.youtube.com/watch?v=ySafTekJ3Ls

I found an account called yoga with Adriene which is the last link and it focuses on yoga excercises involving core, leg and flexibility. 

the workout we tried was the first one and second one! the first was pretty easy and relaxing, the second was harder! I liked the both! here is a picture of ruth and I doing the second workout