The largest university in Wellington, VictoriaUniversity has the steepest campus of any NewZealand university (if you're visiting use public transport and the cable car). Being colocated with the center of goverment it has close links to all sort of goverment bodies and the best library for modern governmental papers, but suffers from a complete lack of space and cronic inability to attract and retain good staff.
In recent years VictoriaUniversity has also occupied a number of buildings in the downtown (the old government buildings and the old air new zealand building).
2 pages link to VictoriaUniversity:
http://www.vuw.ac.nz/