Image Map Tool:
This is probably the feature from Homesite that I miss the most with my transition to OS X for my work computer.
TM has done a great job of easing the pain in most other regards, but I still find myself having to create at least one or two new image maps every week. Most of the guys I work with are happy firing up ImageReady to create them, but I consider this ridiculous. It's overkill to open a (bloated) program, which I use for no other purpose, just to create an image map.
Having used BBEdit prior to TM, I know that it also lacks an image map tool. So this would be yet another area in which TM could beat BBEdit.
Warren L. Parsons