Cheap Shipping from NZ to UK:

http://www.nzbaggagemovers.co.nz/ (sea)
http://www.xsbaggage.com/php/ (air)
http://www.europac.co.nz ($500 first box / tea chests, $40 for consecutive boxes / tea chests)

Shopping in uk:
UK Student Life

VISAS
Costs for HSMP:
Stage1
Stage 2