Since you're not looking for amp modeling, I have heard good things about the new Line6 M13 Stompbox modeler. The Boss ME-50 may be an option as well. I've had a Line 6 Flextone II (POD 2.0), POD XT and XTLive, Johnson J-Station and VOX Tonelab LE. As far as the fx go, I like the way Line6...