Ok, I'll bite.
Firstly a lesson in 'net etiquette: A post in all capital letters is read as yelling, talking loudly and RUDE. <stepping down from my soap box>
The configuration you laid out is possible as suggested. The increased bandwidth can be configured to one specific section of your network, or a specific computer.
I don't have any experience with SQL directly, but if you need dedicated bandwidth to such a server then it will work. The type of server doesn't matter, it could be an SQL server, e-mail, web, etc. It will use that bandwidth for its assigned tasks. If the bandwidth and configuration meet your requirements, then hurrah!