1 INTRODUCTION

2 SAMPLE SELECTION

3 OBSERVATIONS AND DATA REDUCTION
3.1 Deep optical imaging
3.2 Interferometric HI observations
3.3 Optical spectroscopy
3.4 UV imaging

4 ANALYSIS AND RESULTS
4.1 Revised color and stellar surface density measurements
4.2 Signatures of accretion in the multi wavelength data
4.3 Star-forming properties of the HI-excess sample
4.4 The environment of HI-excess galaxies

5 DISCUSSION

6 SUMMARY AND CONCLUSIONS