Need info about Microsoft?s licensing Policies and pricing

How much would it cost to offer hosted Microsoft office 2003?  I want
to do this via Terminal Services on a Windows 2003 server.

I assume I just need to buy a copy of Office for each user that I want
to sign up. Amazon has Office for $420 for the Pro ver,  $350 for
standard ed, and $375 for Small Business Ed

Is this the only way to go?
If I have 5 or 10 or 20 people, can I get special pricing?   
How can I avoid the up-front cost?
How much are the CALs or licenses needed for the terminal Services
acct itself?  I know that Microsoft?s licensing for adding terminal
services user was very hard to understand last time I looked at it.

I found a few companies that offers this and I noticed they don?t
charge a sign-up fee, so I am wondering if they have some arraignment
of licensing package where they pay monthly, rather then a large up
front cost when adding a user.

://www.google.com/search?hl=en&q=hosted+microsoft+office&spell=1

I need the info in the next 24 hours if poss.

thanx in advnce

Check with CDW.  They do a lot of work with Microsoft products and
have experienced staff when it comes to licensing models.  There is a
special program by which you can pay for a number of licenses over the
span of 3 years so that your costs up front are reduced.