I do the elliptical 3-4 times during the weekdays for 35-60 mins. If the elliptical isn't available at the gym, I alternate walking and jogging on the treadmill for 30 mins, and then do 30 mins on the elliptical when it is free. I'm really not a huge fan of the treadmill though. I also take an intense hip-hop dance class at least once a week.
On weekends I usually don't do much cardio, but if I really feel like I must, I'll pop in my Zumba Advanced DVD. On Saturdays I take a salsa dance class. It's not very intense, but at least it keeps me moving. I like doing something active almost every day of the week.
For strength training, I work out arms, chest, and back with dumbbells twice a week at home. For abs and butt, I like using a stability ball and my Core Secrets Target Toning DVDs. I plan to get back into doing Pilates again. I just ordered this Pilates DVD I used to have on VHS a few years ago that did wonders for my abs back then.