Q12 – Are there any good (better, free) post-editing tools you can recommend?

Yes. Any CAT tool will become excellent post-editing environments. When you follow an open standards TMX workflow, you will be able to leverage matches from your TM while profiting from large chunks of translated text.

You can also use freeware tools such as XBench, which will aid post-editing TMX files and even check consistency between segments before final proof.