This month's "Column Watch" is the conclusion of a two-part series in which Ron Majors examines the trends in column introductions at Pittcon 2003. In part It, he discusses large- and preparative-scale chromatography columns, gas and supercritical fluid chromatography columns, thin-layer chromatography and capillary electrophoresis products; sample preparation products; and hardware and accessories for chromatography and sample preparation.