I found a nice, cheap holster pouch for my Pre at Office Depot. The Pre fits PERFECT and it seems to be well-made. It is a vertical case with a belt clip (not swivel) and is actually a camera case. It is a SwissGear Sherpa GA-7835-01 Here is a link from Amazon. $10

Amazon.com: SwissGear GA-7835-06F00 SHERPA Blue Compact Camera Case: Camera & Photo