http://www.sparkpeople.com/resource/fitness_articles.asp?id=964 (Jumping Rope)
Sparkpeople has videos for all these machines/workouts as well. They have workouts/videos for seated exercise too if standing is a problem. Add in Forums, Teams and Groups get you motivated and keep you focused. Check it out, it's a great resource!
In other fitness news, I've quit the gym. BUT, I've gained a treadmill. Dh bought me one for my birthday! So now I have in my fat-blasting arsenal: Treadmill, Elliptical, Hand Weighs, Kettle Bell, Resistance Bands, and a whole shelf of dvds. I'm good to go, and I've found that if I stick with home workouts, I burn MORE calories than at the gym, and in less time!
I think this is b/c the gym is hot. HOT. Despite the a/c, you sweat b/f you ever begin your workout. At home it's nice and cool, so I can do more, faster. About the big equipment? We got them for a steal. The elliptical came a couple years ago. Floor model at Kmart, last one, marked down at checkout for....are you ready....$69! It was originally $350. Crazy good deal. (It's a Weslo, but works fine)
The treadmill was also a floor model (but up on a shelf, so no one used it), marked down to $150. I've found the same model on Amazon going for $450-500. (This is a Gold's Gym Trainer 410) So far, we've been very pleased with both purchases. We now have a really nice home gym, for very little investment. You can also find used equipment at great prices on Craigslist, so check them out, too.
Quitting the gym saved us $200+ every three months for the two of us, so we used part of the next installment (well all of it) for the treadmill and some more dvds. Totally worth it!