Do you know how fast your current system really is? Does it seem OK when you run it on your local machine, but then seems to be slow when it's under load?
I can provide neutral third-party benchmarks of either the hardware or software aspects of your site.
The benchmarks can include:
I generally use either Visual Studio Team Test or Microsoft's WCAT tool for web-oriented benchmarking. Custom code (in C#) may be advisable in some cases.
The deliverables for a benchmarking engagement normally consist of code and/or configuration files, a report, and sometimes a demonstration. I can deliver the report in written form or by teleconference, or both.
If this interests you, please send the following information, so that I can provide a quote: