If you're updating your tools, check this out: Following Microsoft's RTM of Visual Studio and .NET Framework 3.5 last week, other companies have been jumping on the bandwagon with their announcements of support.
Here's a sampling--
Installer: http://www.prweb.com/releases/2007/11/prweb571709.htm
Web Hosting: http://www.hostreview.com/news/press/071126ReinventTechnologies.html
Web Hosting: http://www.thewhir.com/marketwatch/112707_CrystalTech_Throws_ASP_NET_3_5_Party.cfm