I am working on the FCP Workflow videos ... but they won't be ready for a few weeks yet.
As for the echo issue, that's a hard nut to crack. The only real way to battle this is by using a Noise Gate. not noise reduction, but a noise gate that brings levels below a certain threshold to 0 dB.
If you set the attack and release right, you can cut off the reverb, but it will still be noticeable during the parts were the signal level is above the threshold.
in short, there is not real way to remove all of that reverb, either in STp or any other audio program.
The noise Gate in STP works alright, though you may also want to try the Waves C1 gate (waves.com). there's a free 15 day demo of it, and I've never used a better noise gate than this ... it's used in every single one of the videos we release to remove fan noise, and sometimes recordings with bad or too noticeable reflections (reverbs), similar to your situation ...
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