What items should I ask for in my startup package? I have offers for tenure-track computational biology positions at a couple of U.S. research universities. What sort of things do I need to budget for in my startup package?
I'll hopefully be in your position in another year or two, so I'm not speaking from experience. But a few things come to mind:


Laptop (be specific) and associated technical support
Any software licenses you need to complete your research and teach
Office space and furniture
Lab space
Lab equipment (be specific)
Access to shared lab equipment as needed (be specific)
Access to server(s) where you can test your code/algorithms/etc.
Access to cluster computing resources (if that fits in with your research)
Lighter teaching load your first 1-3 years
Lighter service load your first 1-3 years (not sure if that's something you would explicitly ask for though)
Salary (and benefits where applicable) for any students, staff, post-docs you will need to be successful in getting papers and grants written
Money for other miscellaneous expenses that you envision will be necessary
Money to travel to 1-2 conferences per year


I'm sure others could think of more to add...