Catilley,
Microsoft do have a
Home server as well this one for both small business and home servers,there are also many on Laptops.I will include this link and your questions many of which I myself don't have as I am also reading the information etc about it.I am Glad you like the Office it's cool I like it,as for the home server 2008 I have it on my XP desktop it is installing now I will let you know how it runs and what it can achieve .
There are three principal sources of information from Microsoft about SQL Server:
If you do not find the information you are looking for in these sources,
Go to this link and you should find both Home server & Windows server 2008 Beta you can either post questions in the SQL Server community forums and newsgroups, or you can open a support case with Microsoft.
Enjoy
best regards
jeffreyobrien