Yeah, that Open Source stuff is looking better all the time. Although home should be capable of testing ASP components. (VS 2005 has a web hosting program that only works for the local computer, strictly so a developer can test the functionality of a website)
Yeah, I have that here, on Vista Home Premium, Vista support for a few niggles in XNA will arrive soon (They might of sorted it by now, I've never looked) and too be honest, my business runs on Open Office Portable (On my data key,lol), so development wise, I think Home Premium is enough for me, though, there might be a feature in, say, Vista Ultimate that could draw me too it.
Time will tell! :)
Dabz