I need web 2.0 scripts for my clients please provide demo

Hi I am in need of already available scripts to many popular websites like fiverr, 99designs, groupon, etc etc i need web 2.0 style scripts that are full featured with front and back end. please show me good scripts i have a client base and im looking for good quality scripts to use and customise to my clients requirments. Provide me with demo i am not looking to develop anything from scratch only providers with already available scripts that are willing to customise can apply. No big bids, i have limited budget per script. more work provided for the right supplier thanks