I posted on the list yesterday about upgrading the hdd in a TiVoHD from 160GB, so here's some
System Info screen shots:

To a 1.5TB hdd

I have only had a little play, it did GSOD on me and I just left it as instructed to run its course.
It said it would take 3hours to recover, but only took about 45mins to 1h. When I imaged it I used
the default swap of 128 as per the MFSlive site.

So all seems ok now I just need to wrap it for Christmas.