Help me make a music video?

I am not going to lie, the video wont turn out well. You really can't mesh a very low quality video from your webcam with an HD 1080p video that Brittany shot. She and her producers obviously put millions of dollars into production equiptment, while you only have a low quality webcam. She also uses a program called SONY VEGAS PRO 9, a program costing over $600.00. You really need better equipment, such as a greenscreen, a high quality HD Cam, etc. It wont turn out, sorry.