I just downloaded and am installing visual studio 2008 RTM from MSDN today. It took a while for me to uninstall visual studio 2008 beta 2 because I had a few programs open. My suggestion is to uninstall the software with nothing else running and walk away from your computer for a few hours. Also I noticed that there is not the team explorer install included in the Team Suite download, so you will need to download the team explorer for 2008 here if you use TFS
I am deciding to install it and go to bed so in the morning hopefully everything installed ok. I am installing side by side as I have had mostly good experiences with the beta 2 build on my production machine that is also running 2005. I am so excited to use the new IDE in production as a daily tool.