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We present high precision and well sampled BVRIJK light curves and radialvelocity curves for a sample of five Cepheids in the SMC. In addition wepresent radial velocity curves for three Cepheids in the LMC. The lowmetallicity (Fe/H ~ -0.7) SMC stars have been selected for use in aBaade-Wesselink type analysis to constrain the metallicity effect on theCepheid Period-Luminosity relation. The stars have periods of around 15 days sothey are similar to the Cepheids observed by the Extragalactic Distance ScaleKey Project on the Hubble Space Telescope. We show that the stars arerepresentative of the SMC Cepheid population at that period and thus willprovide a good sample for the proposed analysis. The actual Baade-Wesselinkanalysis are presented in a companion paper.Comment: Accepted for publication in A&A, 23 pages, 10 figures, data tables  will be made available electronically from the CD

BVRIJKlight curves and radial velocity curves for selected Magellanic Cloud Cepheids $\!^{,}\!$