http://i44.photobucket.com/albums/f6/wulftk/n50801386_30685736_5292.jpg
Not trying to be a showoff with my picture, just showing what I look like so you know my diet and exercise regiment works.
To keep it short and sweet, here's a few pointers:
1) Cardio can (and should) be done every day. If you have access to a pool, use it, as swimming is EXCELLENT cardio and easy on the joints. If you can't go to a pool, jogging works. Try to stay on grass/soft ground when you jog, only run on pavement when you HAVE to as this is hard on the knees.
2) When lifting, give the muscles you work out at least 48 hours to recover, especially when you're first starting out. If it feels wrong, don't keep lifting. You actually move in a NEGATIVE direction if you work your muscles before they've rested (commonly referred to as Overtraining). My personal schedule looks like this:
~Mondays and Thursdays I work biceps, triceps, and chest
~Tuesdays and Fridays I work abs, back, and shoulders
~Wednesdays and Saturdays are legs
~Sundays I do not work out at all. Regardless of working different muscles each day you should give your whole body at least 1 day of full rest per week. If you're lifting ALOT of weight, have more days.
3) Make sure when you work out muscles that come in twos (ie biceps, triceps) that you lift equal weight on each side. This keeps your muscles in tune so one doesn't become more developed than the other
4) Working out is not about how long you do it, but how HARD. Intensity is key, so work hard when you work out. You should be sweating a fair amount. Spending 3 hours at the gym does you no good if you barely break a sweat
5) Enjoy yourself. Working out should not be done for other people. Working out should be for personal health and happiness. The natural high from adrenaline and exercise is very refreshing. Anyone who works out regularly will tell you that they feel energized after a workout, not tired.
6) Be committed. Once you get past that first week or two of soreness, workouts will begin to feel good. You'll be feeling that rush that I mentioned in number 5.
Follow these tips and you will be on your way :)