We actually just completed changing out our kitchen sink. When we remodeled a few years ago we too thought that a large single sink would be good so that's what we installed. We found over time that many times we wanted a second sink to run water into, drain something into, etc. This was despite the fact that we had a small prep sink elsewhere in the kitchen. We ended up replacing the sink with a double sink that has one large and one small bowl. We also ended up putting a garbage disposal on each side. That way we have a disposal available for items that come out of large pots and pans while we clean them and also have one available for small items in the other sink. We haven't been using this setup very long yet but so far we love it! Be sure to weigh all your options and make the correct decision upfront. We found that changing it is quite a project due to having to modify the countertop, plumbing and electrical connections!