CGG1066
Minister of Finance
maybe just give bonuses to particular techs researching?
e.g. you research iron working. if you go to war and kill enemy units - you get free beakers towards it. get cattle resources inside borders to speed up animal husbandry, etc. such a funny little quest for each technology.
That is actually an alternative I thought of early on, rather than my initial suggestion to use SWUs (described in my first post, which don't create beakers, but are ways of dividing them up).
One problem with it is that it could encourage players to do strange things just for the sake of doing things to get beakers. For example, building roads and tearing them up and building them again, just to move along construction/trade techs. Not that such gaming is an inevitable consequence of the system. It's an idea that defiantly needs looking into (I just chose my other implementation idea to get the discussion started).