removing kegs after carbonated

I have two kegs in a kegerator. Both carbed up. I want to remove them so I can use the kegerator with my temp controller for my next batch of beer. I'll take them out and put them in my wine cellar at 65 degrees for 1 week. Will this damage anything??? I figure it would be fine for a week during primary fermentation, at that point I could move the fermentor into the cellar to finish off and put the kegs back in.

Then I started thinking what would happen if I forced carbed 2 kegs at different co2 level's seperately and then connected them both back up to a single regulator. Could I leave the co2 pressure set lower, or will the co2 from the higher carbonated beer decrease and/or create back pressure?? Once a beer is carbonated, is it necessary to keep pressure on it other than for serving pressure?

I'm just trying to figure out if I can get away with this without a seperate fermentation chamber. I'm eyeing doing my first lager and also a highly carbonated hefenweizen.

thoughts???

thanks.