I'll likely be purchasing a new iMac whenever they get refreshed, and I'd like to take advantage of a nice perk offered by the state of New York exempting buyers from paying sales tax (pdf) when the hardware being purchased for the purpose of developing computer software for sale, or developing web sites when that service is for sale. Since use of the form requires that you provide it to the sales person at the time of sale, I'd need to place my order in-person in a store. It's easy to see how you'd customize a machine when ordered online, but how does it work in the store? Since a customized machine may/will take some time to produce the desired configuration, do you order in-store and have it delivered to your home? I've always ordered my Apple stuff online. Thanks for any insight you can provide.