Sheesh!  What is it about Apple RAM that makes it so ridiculously expensive.  $700 to upgrade a 2GB iMac to 4GB.  What is this, RAM for millionaires?  Is it coated with precious metals and stones and come in a box lined with albino tiger cub fur or something? Seriously, when Dwight Silverman said that Apple charges $850 to upgrade an aluminum iMac to 4 GB when configuring a new unit, I thought he'd had too much mulled wine over the Holidays, but no, he's right - an upgrade will set you back $850 notes.  Then I thought that this must be some kind of mistake, and that other systems are offered with more sensibly priced RAM upgrades - nope.  It doesn't matter...