Buy from crucial, when you factor in their free shipping they are cheaper than most half decent brands. You might find some super-bargain RAM cheaper if you don't care about whats stored in it.
Crucial also have excellent service for returns or if the stuff doesn't fit.
It has to do powerpoint, with the ability to do the latest version's transition effects a flash movies. People have to be able to just turn up and not need to have converted their presentation in advance
Remember HN readers you can't enter the US under visa waiver in your own Learjet, but we all knew that didn't we?