PSU for Cubit 3 and EPIA M2-12000

Could someone advise me on the minimum power PSU I should buy for my SFF build? It consists of:

Cubit 3 Case
Epia M2-12000 Mini-ITX Motherboard
3.5" Samsung 250Gb 7200 Hard Drive (SpinPoint)
256 Mb PCI Graphics Card (not using on-board GFX)
Slimline DVD/CD-RW Optical Drive


Thanks in advance

The powersimulator at epiacenter should help :
(offfice app setting seems to give the 'peak' estimate)

http://www.epiacenter.com/powersim/p...mulator_v2.htm