First of all you got the VS 2005 Service Pack 1 for Team Suite, and it's said to contain some 2200 fixes?!?! It's available for download here. Note that it's a 430 MB download and it's also said to take some time to install.

Second good thing, and also a must to download and check out, is the RC1 of ASP.NET AJAX. You can read about it on Scott's blog. As usual, Scott gives you the info you need. I'm pretty sure that this package will used ALOT in the next couple of years, until something else pops up or becomes "cooler". Perhaps WPF(e) will beat it eventually, Another thing - the ASP.NET hompage news also says:

The Microsoft AJAX Library is also available in an easy-to-install, standalone package for development on non-Windows systems. 

Sounds interesting, don't you think? You can download and read more about ASP.NET AJAX on their webby,