As a few of us are now using Steam I thought I would post a few tips.

1. Always run steam as admin.

2. You only ever need to install Steam once then you can cut and paste it to any drive you like, meaning you don't have to install your games or Steam again after an OS change, just locate the Steam exe and run it.

3. Once you have played a game to the end and you no longer whish to play it for a while you can backup the game to another drive and free up space on your SSD for more games, if at any time you want to play the game again you can simply import it back to Steam. (right click on the game in your Steam games to access the menu)