Here's a tip from my colleague Ed Wilson (a.k.a. The Scripting Guy at Microsoft) that shows you how to create easily a Windows PowerShell array:
Question: What is the easiest way to create an array of 10 numbers?
Answer: Use the range operator. This appears here:
$array = 1..10
Ed Wilson is the bestselling author of eight books about Windows Scripting, including Windows PowerShell 3.0 Step by Step, and Windows PowerShell 3.0 First Steps. He writes a daily blog about Windows PowerShell call Hey, Scripting Guy! that is hosted on the Microsoft TechNet Script Center; for more PowerTips check out the Hey, Scripting Guy! blog.