Using Powerpoint is a great way to create colorful, attractive printables.
When I first started creating classroom printables, I was using Microsoft WORD. It was really tough to move the images around and just didn't behave as I wanted it to. Using Powerpoint was much easier and now I use it all the time, for pretty much everything. It's versatile and does what I need it to do.
Here's a video about printing out your clipart images via Powerpoint. It's really for those who are new to using graphics and shows you how to transfer your images from downloaded files into your documents.