Database Forms

Problem - Getting data into Database (Access, Excel?)
- Two types of users (up to ten users)
One type with mobile PC to enter data
One type with pen and paper only
- Would like to design Data Gathering in Excel
for the mobile PC users to collect data then
upload (via macro)to database when they return
to the office
- Would use the same format to collect data
with users without the PCs and have them
enter it into the same forms in Excel and
upload to the database

Obstacles:
1. Only one license of Access that's why data
will be entered into an Excel spreadsheet.

2. Like a purhase order, where there is a one to many
relationship (one order - multiple items).

3. Items (there are hundreds) are in a table with sku
numbers and descriptions.

What I like to do is create a form to gather the
information (with lookups to pick the Items) and have
the information held in Excel worksheets and upload to
the Access database. Keeping in mind to make data
entry as easy as possible for the users.

Any ideas how to do this?

Thanks.

John