OK, lived through my first week of BFL. Thanks to Nat and everyone else who answered my questions. I'm still not totally in the groove, but I think next week will be better. I've done two resistance sessions, one upper and one lower body and three HIIT on the treadmill. (You're absolutely right, Nat, the HIIT is a killer!) Next resistance session is tomorrow, and then Sunday is my blessed day off.

However, I am modifying things a bit by doing 3 sets of 15 reps for each exercise instead of 5 or 6 sets, and wonder if this will make a huge difference. I'm working to failure in virtually every exercise.

And I THINK I've finally gotten the eating correct, again thanks to Nat and the wonderful stickies on the forum. Also thanks to hcomeau and everyone who's answered his/her questions.

Any advice about the 3 vs 5 or 6 sets? I'm working for the next two weeks with a trainer who really doesn't want me to do so many sets. After that, though, I'm on my own.

Thanks!