Something I imagine might be easy for someone new to the program to miss, is the Tool Shed. Tool Shed is a helpful collection of macros to which you can easily create your own! (Select your clip on which you've worked your magic, and then click "New" under Presets) User Splines to record your settings into a Preset. You can then apply some or all of those recorded settings to whatever clips you've selected by clicking Perform!

The Ripple Editing in SpeedEDIT is among the best I've used, keeping audio and video of "down-stream" clips perfectly synced regardless of my cutting/pasting/stretching/trimming upstream clips. And with its ability to select all clips above, below, left or right of your cursor, making large-scale changes to your project is painless.

SE has a very nice CG (Character Generator), though it requires one to drop in a *.CG filter in the project to access its interface. CG Post has everything I could imagine needing for any kind of Plate or Crawl for any project I'd find myself doing... the only thing that seemed to be lacking is that it does not appear to have a way of doing Timecode "Burn-Ins."