New Roamio Question-Fios

I just bit the bullet and bought a new Base Model Roamio after spending a half hour getting a $75 off shot in the Tivo promo. It will be replacing an HD in my bedroom that is plugged into FIOS. It's been a while since I messed with my Tivos. I guess that all I'll have to do is pop out the Cable Card from the HD and plug it into the Roamio and go through the pairing process.



Correct?



Also, I'd like to upgrade it and wanted to know what suggestions you guys could give me for a newer higher capacity HDD and where to get it.



I understand that all I need to do with the Roamio is pop in a new hard drive and it will format it automatically. Not like we had to do in the past with the older Tivos..



Correct?



Thanks for the help!