I think the wireless mice/keyboards are only options.
While you can probably save more by buying third-party RAM, Apple makes upgrading the 2.4GHz 24 incher to the 2.8GHz, 500BG SATE, 2GB RAM model exactly the same cost as doing it through they Store options. 2.4GHz base model=$1800. Add the 2.8GHz cpu(s), a 500GB drive and another 1GB RAM stick and it costs the same as the regular 2.8GHz model that comes with all those other changes. It's not funny when companies sometimes make the upgrades cost more than what a similarly configured model would cost. Thanks Apple.
Also noticed that all the screens are now 'glossy'. No option for the matte type.
Finally, you might want to wait until after Leopard debuts and then expect it to either be installed or included as an upgrade disk. The current models still only have Tiger installed, of course.