Good for you - I have an elliptical machine too, I love it. And the weights are great....I would definately recommend weight training. You can do this at home, like I do. One of the reasons I started this at home was because I had no idea what I was doing and didn't want to look like an idiot at the gym. There are lots of good videos to show you good form...the Firm tapes, Denise Austin, etc. And dumbbells are pretty cheap.

Don't be so hard on yourself... - you look great and I"m sure you'll hit your goal weight, soon.