order form & domain check application

Hi , Quite a simple job today.......you propably have a script that will do the job just perfectly. I am looking for a application which allows users to check the availability of the domain name of their choice ( .com/.net/.org/.nl/.eu ) including an order form so they can register the domain & order a hosting which I am selling ( 5 variations of hosting plans ) I am looking forward to your bids. Thank you