After researching the many gallery components available for Joomla, I decided on RSgallery because it had the features I was looking for and had many positive reviews.
I just installed it this morning and am still working on creating my new galleries, but WOW. This is so much better than Zoom - I am really pleased. The interface is much easier to work with and it just looks so much nicer than Zoom (and I haven't even touched the CSS yet...really only a few tweaks here and there) I love the option of having different templates and I tried them all, but it seems the default tables template will work best for my site anyway.
I highly recommend this component for anyone needing a basic, clean image gallery. As someone noted on another comment, be sure to go to the config panel before you start uploading images. I also changed my thumbnail size to 100 (from the default 80 - too small, I think) and full size to 500 - I'm not sure how changing those numbers after uploading images would work, so do it first.
You get an excellent rating. Thanks!