I use elipticals at the gym and really like them. I find them a nice low impact way of getting my cardio in, and a good alternative to treadmills and running outside. I get bored doing one thing over and over though so I switch it up as much as possible. I recommend getting some home equipment though, as it will make your work outs more convienent. Check craigslist for good deals on exercise equipment, they are the types of things that people buy and never use then sell for cheap just to make space in their house. Most people try and sell it for what they paid but if you find ads that are old and then seriously low ball them, you will find more takers than you thought.
I would also suggest looking into home work out programs like P90x or insanity. The Beachbody group has a ton of reasonably priced programs available, P90x is probably the best introductary program out there. If you follow their nutrition guidlines as well as the work outs then you will see amazingly quick results. Also look to join facebook exercise groups, facebook is a good way of linking up with people of similar goals and keeping eachother challenged and motivated, as well as providing tips and support. One really good site to like is "I see fit people" the girls and guy there are great and they are always starting up challenge groups you can get involved in. My girlfriend also just beceame a beachbody coach and started up her own fitness motivation facebook page, "Everybody Sweat NOW", which I encourage everyone here to "like". Her page is in the begininng stages but she provides lots of healthy living tips and motivation, and she will be starting her first challenge group in a few weeks. She is hard core, and knows her stuff which keeps her looking good so I dont complain (unless I want a bacon cheeseburger).