Hello! I am a big fan of Jillian Michaels and have most of her DVDs. Would love to swap recommendations for other great workout DVDs that are fairly challenging. As well as the legend that is JM I like the Kettlercise DVDs (love kettlebells and lifting weights as well as cardio) and also like the Guillermo Gomez Kickboxing DVD. Any tips would be brilliant. 😀😀