FoxPro vs. SQL

Hello everyone,
My company uses a FoxPro database right now as an interface
and a database. For our situation, I have come to the conclusion that
it would be a better choice for us to move to an SQL server of some
sort. I have been given the task of overseeing the overhaul on the
program. I am paranoid about security and uptime, and so is the CEO and
there is more and more demand for the company to get on the interactive
internet. I'd like our clients to be able to submit data to our
database and pull data from it (only certain data of course). My idea
is to convert the FP tables to and SQL server and write an internal
application(or web-based - advantages? I dunno) for the interface. For
the internet side of things, my idea is to have seperate web database
(SQL) that will put information from web clients. Through the internal
interface, internal users would then be able to pull data from the web
database to the internal SQL. And through the internet (authenticated
of course), the web users would pull data though the web database, who
pulls information from the internal SQL database. Would someone please
tear this idea apart w/ advantages and disadvantages. Also, if this is
the best route, tell me how I can sell this idea to my boss. What's so
good about using SQL vs. FP over the internet? What about internally?
What about security? Cost is going to place a big role on the what the
CEO decides, unless I can sell him otherwise. Should I tell him that we
shouldn't do it now and save some money to do it right? Or what? Some
help please. Thanks.

Alex