Yes. Synaptic is good. It is my preferred package installer. It is no
longer included by default because they are pushing the Software Centre,
but Synaptic provides more useful information and has better filters. You
can display by source, broken packages, etc and it will show dependencies.

What Synaptic will not do is search outside the repos. It uses your sources
list. That is what threw me. Glad you found what you needed. :)