I'm more interested in these Hitachi ones at the moment, is the software really as good as you say?
Yep

and if you buy the maths or science suite versions they will take you up to A-Level,
Be aware the Hitachi FX-duoboard has been released which now has both finger touch and pen ability.
Also the boards can be used as normal dry wipe boards.
http://uk.hitachisoft-interactive.com/Templates/Type2_English.asp?modeID=Content&uID=103&DoLogin=
