The aluminum frame broke at the BB. Was cranking up a hill when I heard a snap and bam, huge crack along the BB shell. I brought it to my LBS and they believed it was because of me just being brutal on the frame. There was aslo another case in which I busted up an aluminum frame. As for the steel, it snapped about mid way along the chain stay. Again, it was suggested it was due to me being too big or brutal on the frame.
I'll definitely check out the other frames everyone mentioned as well as look into the cutter/thrasher again...