I'm not a Jillian fan, so I prefer a program with Chris Freytag (used to be an ExerciseTV trainer) called 10 Pound Slimdown. Chris also does a Walking Cardio DVD that I like. If you are really intense, she does the 10 Pound Slimdown Extreme, which can also be found on YouTube.
A couple other trainers I found through Exercise TV that you might want to check out their videos-
1) Amy Dixon - I love her-she's adorable! I am even "Friends" with her on Facebook and she occasionally comments on things I post. I feel so special

She has a couple DVDs and YouTube videos, including Breathless Body and the Give Me 10 series.
2) Holly Perkins-She has something called Fitness360
3) Violet Zaki-I have several workouts of hers that I like that you can probably find on YouTube and I also have DVDs that I bought from Acacia-Weight Loss Cardio Kick and Weight Loss Cardio Sculpt
My mom swears by Leslie Sansone's walking program, which is gentle on your joints but not as intense.
A friend of mine teaches Booty Bare classes, which are inspired by Tracey Mallett's videos.
Another good free source is a website called FitnessBlender. They just recently added a search feature that makes their site much easier to navigate by length and intensity of workout.