Any Good Way To Do Sync DB's?

I have a project where a client has products stored in a large Progress
DB on an NT server. The web server is a FreeBSD box though, and the
client wants to try to avoid the $5,500 license for the Unlimited
Connections via OpenLink software and would like to take advantage of
the 'free' non-expiring 2 connection (concurrent) license. This wouldn't
be a huge problem, but the DB can easily reach 1 million records. Is
there any good way to pull this data out of Progess and get it into
Postgres? This is way too large of a db to do a "SELECT * FROM table"
and do an insert for each row. Any brilliant ideas? Thanks,

Joe