Memphisbelle!
I hated to exercise too, but knew I needed to try it. Talking with the chicks in the Exercise forum really helped motivate me when I first started SBD. You might want to check that out.
Have you tried the Walk Away The Pounds (WATP) videos? They are highly acclaimed, especially by 3FCers who are just starting out on an exercise program. You might want to try that. If you like dancing, you might want to look at a dance-oriented exercise class, from Nia (which is lower impact and can be lower energy, also has a yoga-like feel to it), to Jazzercise (which is higher energy and incorporates weights and ab exercises, but you exercise to popular songs and have fun routines to learn), to Zumba (which is high energy and based on Latin dance steps). Taking a class with a friend is a great motivator, as is making plans to workout together at a gym or go for walks together. When you don't want to let someone down, it makes you more likely to go. You might also want to try water aerobics--you don't feel like you're working hard, but you get a great workout!