So I was supposed to have stored the DTS this winter but the STS wasn't out of the shop in time. However I'm wondering what the best way to store her is.

Just park it in a garage somewhere nice. Should the car be in the air letting the suspension hang? It's only for a few months of the year, maybe 4 or so.

I may even take it out and drive on nice days during this time so I don't want to do a full blown drain the fuel, disconnect the battery deal.

Any advice?

If your gonna drive it ocassionally (which I think would be better), I'd just park it hot and leave it till the next drive.

Possibly a trickle charger to keep the battery fresh. Otherwise I'd check the tire pressure and fire when ready. Run out the flat spots in the tires. I've never done more than that with my garage princesses and gotten away with it so far.