Computer advice needed for medical research project

[huy.duong@ctsu.ox.ac.uk]

Dear friends,

In the Red River Delta, 90% of children are infected by intestinal worms.
Intestinal worms may adversely affect development. Primary school children are 
infected most severely. Primary school children are also at crucial stages in 
their physical, mental and educational developments.

The Partnership for Child Development at Oxford University is setting
up medical trial to measure the benefits of killing intestinal worms
and educational measures in school children in the Red River Delta.
This trial will need to store data on age, height, weight, the level of
some nutrients in blood, scores of cognitive tests, time to re-infection,
etc, for children in either 100 schools (consisting of 80,000 children) or 100 
sub-district (consisting of 800,000) children. The data is to be analysed by SAS 
or SPSS.

Computer experts, what hardware, software and personel would you recommend
for data entry and maintenance?

Also, if a health institute in Hanoi (the one that is running the vitamin A and 
iodine programme) gives, say, worm medicine to some schools, a vitamin to 
some others, worm medicine + vitamin to the rest, do the schools
have the ability and the will to administer the stuff or to the children?
If the schools are in the same sub-district, will the sub-distric authority or 
school demand that all get the worm medicine or all get the vitamin?    

Many thanks in advance.

Huy