Tim - I don't think so unless you're reffering to the lower back problem I've had for years.
I'm going to see how my back fairs with the squats. However I wont be doing any deads, rather not push it too much.
Prince - yes my legs are very stiff, even sitting is difficult considering my glutes are pretty sore. I do miss the feeling of sore legs though, it makes me want to train legs more often which I'll be consistenly doing from now on. The 2 days afterwards do make cardio a little more difficult but it's worth it.