I consider myself to be pretty good at small in browser flash games. Well, if you can equate obsession with some level of expertise... even then you'd be stretching it, but still... Ok, I admit, I'm pretty good at wasting time on them. Nothing more. However, T-LINK is a good waste of time (as opposed to a waste of good time) and is one game I found a link to from the ever informative freako.
It lets you play around with controlling spending on various things relating to Kansas transport and see the effects of these decisions. You can also control your revenue by various methods including issuing bonds.
Happy policy making.