I think the express way is the best way to go in your position. If your life depends on it (your job) then I would say, go for the full blown thing, but you can get logic for $300 (edu is less) and then upgrade to the full version later for the same cost as the full version in the first place (additional $700 for the upgrade, $1000 new)
anyway, not sure about an upgrade for fcexpress, either way, you save a lot of money.
my .02