why not consider a GT6?
sure, it's an older model, but do note that a GT8 is bigger than a GT6 (which is fricking big to begin with) and that a GT6 (2ndhand?) is definitely cheaper nowadays. Besides, the GT6 is a very decent pedal for its money. Good tones, although some of it is digital sounding, but hey, if the digital sound is good, who's to complain?
Yes, GT6, GT8 and the pod xt live all do sound digital in their own ways.
maybe Chanmin can shed some light on the Tonelab SE (there was a thread around here which had info on it too.)