Steak Cut Choices:
Okay this a personal decision. I find most people have their own faves.
I tend to dislike sirloin in a big bad way. I'm partial to striploin and tenderloin cuts. Quite often I break down my own tenderloin so I use the small pieces I cut off to make the steaks uniform in size to make fajitas and stir fries.
Sometimes I will also buy blade roasts and cut those up as well. If I use blade I will marinate for an hour or two. A good, cheap and easy marinade is Italian Salad Dressing.
For this particular recipe I used a blade roast and cut it up myself.