Congrats on making a conmmitment to your health. It can be hard to get started, but it gets easier and easier to maintain. I grew up asthmatic and was told to sit out during gym class and all the physical activities, so I was the skinny pale kid in the corner most of my childhood, too.
Anyway, it looks like you are on the right track. Theres a couple things I would change about your exercise routine, however. If you only go in 3 days a week, then doing a full body resistance training session each time would be a good idea. You need to make sure you hit all your muscle groups each time; back, chest, shoulders, biceps, triceps (can be part of compound exercise for back and chest), abs, calves and legs (glutes, hams and quads). Google for "exercise muscle" and check out the links for examples of various exercises to do for each muscle. It will help you get some variation into your workout, too.
It might also be helpful to do resistance training first and cardio after. Your body uses glycogen to fuel your muscles for resistance training, but if you burn most of it doing cardio first, you're going to have lower stores of energy where you need them (and your body will be more likely to use fat as fuel during cardio after).
As far as diet goes, list what you eat now in a day and we'll see if theres anything that needs to be tweaked.
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Keep your body lean, your blood clean and your mind sharp. -Rollins
[This message has been edited by Naxis (edited 08-11-2003).]