Omber is located in, I belive, Minmitar and Gallente 0.5 spaces and below. Ice I belive can be found in empire 0.8 space and below.
This is an older ore map for eve, but still realevent
http://www.eve-files.com/media/corp/WLDs/roid_grid.jpg
This is a PDF file of all regions of eve space. It will show where stations, ice ect are located.
http://www.ombeve.co.uk/Eve_Regions.pdf
Hope these help.