One large issue I have run into with installing Windows 7 on my laptop was that my USB to Serial adapter that I need to use a cisco console cable and that no longer worked. Apparently, from a little bit I have read on the web, most of the manufacturers of these devices use a chipset from Prolific. I pulled the driver from this site:
http://www.prolific.com.tw/eng/downloads.asp?ID=31
Once I got that installed, all was well again and I was able to connect to switches and routers via the console cable. Yay