Sorry Itdan ,I should have put more detail into my first post in regards to specifications .Ideally the unit would a largish screen 4 inches or so ,colour screen and ideally be able to do both contour style offroad mapping as well as UBD street pilot style costwise $800-1000ish but will look into grants to see if we can subsidise costs.
Had a look at the unit that Bittenyakkas brigade has just got and it looks a ripper but $1700 would crucify the budget.
Cheers Jaff.