During the course of a PhD project funded by CCLRC's CMPC, we have developed a cell that allows electrical transport property measurements to be made simultaneously with the collection of powder neutron diffraction data at high temperatures. Testing and commissioning of this cell was carried out during a study of structure-property relations in BaCu4S3. This revealed that the maximum in rho(T) occurs at a structural transition (140C) whilst higher temperature anomalies are related to sample decomposition. We wish to extend our investigations to CuFeS2, for which there are conflicting reports cocerning the temperature dependence of structure and transport properties. It has been suggested CuFeS2 exhibits two resistivity anomalies, a magnetic and a structural order-disorder transition. We seek to collect diffraction and resistance data at ca. 14 points in the range 500<T/K<1000.