How to film videos for youtube?

Oki so I have a sony cybershot which films amazing quality youtube videos but the problem is that I do not have a flipscreen camera and I really am not in the mood to buy some dslr canon or nikon (not interested in buying any new stuff at all except if its inexpensive)… Now the problem is that I have to set a lot of mirrors around me so I can see what i'm doing but that does not help enough, its quite hard to do it like that and because I have to film makeup videos I need to see my face really well, So i need to know that If there's anything (like some kind of software or app) that when I attach my camera through usb in the laptop it becomes sort of like a webcam and i can see what i'm doing, or I'm thinking of buying Logitech C910 HD 10 mp webcam, would that work for good hd youtube videos?

Added (1). These are some specs of the webcam Product Description
HD Pro Webcam C910
Noteworthy Features

• Full HD 1080p video recording

• Fluid HD 720p video calls in 16:9 widescreen

• Precision Carl Zeiss optics and autofocus for razor-sharp video and brilliant 10MP photos

• Noise-cancelling dual mics for HD-quality stereo audio-a first for HD webcams

• Convenient cable management system reduces clutter

• 1-click video upload to Facebook and YouTube

• Easy HD calling on included Logitech Vid HD and most major I'm services

Here is a link to convert youtube online vids to your home computer for free check it out:
http://www.clipconverter.cc/

Http://www.youtube.com/my_videos?feature=mhee