Angie - Slow and Heavy is a great series. I recently got the three videos in that series and I think they're fantastic. They do indeed take a lot of concentration, but what I love about them is that I feel people at any level of weight training can use them. Also, I really think the slow reps help you to concentrate on your form.
Have fun with this tape! Let us know how you like it when it arrives. You might have to get the other tapes in the series when you do that one! Your triceps are going to fried..