So yeah, I'm looking to replace my digital camera (I use it for vblogging, mostly) with a webcam. It's easier to run, and easier to deal with than finding batteries for my digital camera and the bloody cord. I'm looking for a great one with sound, and pretty much good adaptability for different lighting conditions. I'm probably going to run it on the shit laptop - Lenovo with a 1.5 gHz Celeron processor, 504 megabytes of ram, an an 80 gigabyte hard drive. (Which is mostly full.) What would you recommend?