Powershell V1.0 does not come with any tools to write scripts. Powershell V2.0 does come with a IDE but it is not as good as some of the other third party IDE’s and V2.0 is still in CTP so you do not want to put it into production. Here are a couple links to a few that I have used and found to be pretty good. My favorite one is the Idera Powershell Plus product but download them all and try them out and then get the one that works best for you. Here are the links.