This is an ideal workout week, which I don't always complete:
Monday: P90X chest routine (it's either chest/back, or chest, shoulders, triceps depending on where in the schedule I am)
Tuesday: Run appox 2 miles (More if there's a race coming up)
Wednesday: P90X bicep routine (same deal as above)
Thursday: Run appox 2 miles
Friday: P90X legs/back routine
Saturday or Sunday: Run appox 2 miles
Take the other day off.
Basically I took P90X 1 and removed the non-weight days because I like running more than yoga or karate.
Also, you don't really need to buy P90X (not sure if that's been pointed out). You can easily find the sequence of the workouts online. I've never looked at the diet book, I just eat a fairly balanced diet and try to skew more towards protein than carbs. The videos are helpful at first, but once you know the routines, they're more annoying than anything else. I prefer the workout to music/podcasts.