When trying to decide tech costs for my mod I realised that I needed to know the tech costs of the ordinary game, and quickly realised that scrolling up and down would be useless, so I made this graphical representation of the costs by just adding the numbers to screen shots of the eras. It's not the greatest gfx I've made, but it should be useful.

Get them here. (http://www.civfanatics.net/uploads8/techcosts.zip)

cool! where did you find the tech costs?

Probably in the editor :p