WCFStorm Rest Enterprise Edition- Unlimited (with 1 YR Subscription)

WcfStorm.Rest takes the pain out of testing REST services. It has a modern "Metro" user interface.  It supports HTTP GET, PUT, POST, DELETE, OPTIONS, HEAD requests.  You can also save http requests, reload and re-run them anytime you wish.  It automatically detects JSON and XML responses  and displays it with a beautiful syntax highlighter.