Thanks for the input GregT.
I have actually been leaning toward the diamond or diagonally bisected style bin storage (similar to those on wineracksamerica's site. I did not think if storing my collection horizontally in those bins, I would have an access issue. I will continue to use cellar tracker with the barcode option to track my bottle location and consumption. If my measurements are anywhere close to correct, I should be able to configure, at a minimum, seven 3x3 bins with another 12 - 18 inches on top or below, depending on how I install them. That should also leave me with a little bit of additional spacing to occupy as I see fit. Since I am looking for storage for at least 500, up to 1,000 bottles, I think I am looking pretty on par. Assuming I had all the bins completely full and had no extra storage, I would be looking at around 650 - 700 capacity. In the end I hope it looks closer to the 1,000 bottle mark. I believe I would still have some room for vertical racking for storage of my single bottles.
I would be happy with the diagonal shelving from the top of the unit down and then room for case and other miscellaneous storage below the diagonal bins.
What do you think, am I way off base?
On another, and sad note, the 1999 Quintessa I opened to celebrate my wife's best friend/brother's girlfriend's arrival to Denver had turned. I knew it was getting a bit advanced in years, but I don't think the "Cellar Selections" of the liquor store we visited in Crested Butte were maintained properly. Haven't heard back from the shop and don't intend to call Quintessa until hearing back from the shop. Bummer...We next erred on the side of caution and opened a 2009 Nickel and Nickel Tench Cab instead. It was delicious but I would have obviously liked to leave it downstairs a while longer. We decanted for about 2 + hours before slurping it down.