We're currently looking at deploying 7+ MS services and are looking at 3-5 Windows 2008 R2 x64 servers to create a domain so that 2-4 developers can program a web app for Azure. Wondering what options are out there? So far I have:

- Amazon
- Rackspace (in January)
- Go Grid

Does anyone have any other suggestions? Would appreciate any experiences as well, especially from a Windows deployment point of view.

(We're possibly looking into Microsoft BizSpark as well so any host associated with that would be a plus).