1. INTRODUCTION

2. SAMPLE, OBSERVATIONS, AND DATA REDUCTION
2.1. Hubble Space Telescope Observations
2.2. Our sample
2.3. Non-SMG comparison sample

3. METHODOLOGY
3.1. Visual Classifications
3.2. GALFIT

4. RESULTS
4.1. Visual Classifications
4.2. Sersic Index and Effective Radius
4.3. Positional Offsets

5. DISCUSSION
5.1. Massive Disks or Mergers?

6. SUMMARY