I have several Kathy Smith videos that I use and they are quite good. I have her two timesaver videos, one for weights and one for cardio, a step video, a latin dance video, an interval training video and a step/strength training video.
A couple of good places to check out videos are
www.collagevideo.com and
www.videofitness.com. The last place doesn't seem to be updated as often but there is information on older videos there. Kathy Smith is a good instructor, but there are lots of them out there. Other good ones, IMHO are Charlene Prickett and Gin Miller. If you look on collage video, you can see short clips of each video and decide which is right for you. They also have reviews by people who use the videos so you can decide for yourself what is a good workout. Sometimes they are cheaper t buy at collage video. Sometiems they are cheaper at Amazon. Shop around!
As an aside, I also had the problem of having too low HDL and I was already exercising so my doctor recommended fish oil caps. They have helped me so you might ask your doctor about these and see if they might be appropriate for you. I don't have any problem with any fishy aftertaste so I am a believer.