UPDATE: We're working on the latest worksheet, which will now also include Mac Pro pricing. Hold your horses! 
Find the cheapest way to score your MacTel. This Excel worksheet lets you compare the Apple Store, Amazon and Apple's Developer Connection to see which one gives the most Mac for the buck.
Click here for latest version!
Amazon is currently offering generous rebates:
The Excel worksheet computes:
- Sales Tax rates for all 50 states, including an option to use the standard or maximum rate. The max rate accounts for additional local sales taxes that may be applied in certain jurisdictions
- Amazon Visa savings, including signup discount and reward certificates
- A9 Search Engine 1.57% discount.
- Total Savings. Price differences between the different stores.
- Apple Developer Connection calculations up the kazoo!!! Check out how ADC Hardware discounts compare to Amazon's promos and Apple's retail pricing. Note that there are actually certain ADC scenarios that are cheaper than Amazon.
NOTE: Don't fear the Macro message. Its a false alarm. There are really no active macros, its only displayed coz we used checkboxes and picklists. The worksheet still works 100% even if you disable macros.
Changelog:
v3.1 - Updated sales tax rates for New Jersey & Georgia to reflect recent hikes.
v3.0 - Now includes iPods!!!
v2.6 - Corrected MacBook 2.0Ghz URL.
v2.5 - Swapped detailed calc and final price area. Final price area is now on top for ease of use. Added ADC vs Apple Store Total Savings calc for consistency.
v2.4 - Added MacBooks. Added conditional formatting to highlight MacTel choice when selecting ADC selection. Removed unfinished price update feature. Never released.
v2.3 - Added price update logic. Never released.
v2.2 - Leopard upgrade was erroneously being applied to ADC vs Apple Store calculation for Student Level. Added tech specs on product link mouseover. Added link to ADC Store in ADC worksheet.
v2.1 - Student Level ADC members don't get Leopard upgrade for free. Changed worksheet accordingly. With this correction, Amazon will always be cheaper than the ADC Student HW discount once all the Amazon promos are applied.
v2.0 - now includes ADC calculations. Instructions moved to separate sheet.
v1.5 - Reduced iMac rebates to $100 to reflect Amazon rebate changes. Earlier, iMac 17" rebate was $125, iMac 20" - $150. Fixed iMac 20" url
v1.4 - Added MBP 17"
v1.3 - Fixed cross-platform bug. A9 Discount now works properly in both OS X and Windows flavors of Excel
v1.2 - now "MS Office 2004 for the Mac" friendly. Put back comments accidentally removed in v1.1 during cross-platform testing
v1.1 - added mouseover comments and more info on Amazon promos
v1.0 - initial release