Being 'toned' as people say is just having some muscle and a low body fat %.
When you say you want to be 'toned' what are your goals? As in specific goals, six pack?
An any case, being 'toned' or 'ripped' or whatever you want to call it is down to nutrition as much and possibly more than it is to training.
Agree, if you want to look lean and ripped you need to maintain a low calorie, high protein diet and combine that with cardio and weights. It's a bit of a balancing act because if you don't get the protein/do the weights you risk losing the existing muscle mass and though you'll lose some weight, you'll actually look flabbier. However as you don't want to get big you need to maintain a caloric deficit which is achieved most easily by combining diet and cardio.
At the end of the day, what you need to look 'skinny-ripped' is, as Millsy says, a low body fat percentage. So to get towards acheiving that:
Diet: Lean meats like turkey and venison. Don't cut out carbs but instead eat 'better' carbs like quinoa, brown rice/pasta etc. Eat as much fruit and veg as you like, the more colours the better, except bananas (eat bananas before/after cardio or if you're really struggling with hunger throughout the day). Don't underestimate the power of breakfast, a high fibre breakfast is great for the metabolism and keeps you full until lunch. If you feel hungry throughout the day - eat! Hunger is your body's way of saying you don't have enough energy so why wait 45 minutes until 'dinner time' to get that energy, a few nuts or an apple will tide you over until your meal. Further to that try to eat BEFORE you get hungry, it sounds like a strange concept but keeping yourself fuelled encourages your body to burn off the fat reserves as it knows it's going to be getting the fuel in a timely manner. If you want to take supplements, a whey based protein is best. I personally recommend Sci-MX Build and Trim Whey Protein, does what it says on the trim and tastes great!
Cardio: At least 1 hour, 3 times a week. Try and exert yourself while doing this. Sure going for an hours walk is better than sitting on the sofa, but if you want to make significant fat losses you need to get your heart really going and burn some calories. It's best to find an activity you enjoy, don't force yourself to go for a run if you think you'll find cycling or swimming more enjoyable; it'll make it much easier to carry on with. Try and find a friend/group of friends to do it with, again this makes it easier to carry on.
Weights: A different routine 3 times a week. Try and look up/come up with routines that work different groups of muscles, this helps your overall strength, but will also help ensure you don't get too big. Find your one rep max and then do reps 3 sets 6-10 reps with between 35-60% of your one rep max. It's not about building mass, but ensuring no muscle loss.
It sounds like a lot of work and to begin with it is, but you get used to it pretty quickly, just try to maintain a routine, find what works for you and I'm sure you'll notice a difference pretty soon.