I use X10 cameras and they are great. They are tough little dependable workhorses. They do need light to work... so you will need floodlights if used outside. If your new to the camera stuff you may want to look at a one camera package, I like a mix of wired and wireless cams.
To get the emails, you will need the AHP (active home pro). The AHP is a PC interface (get the entire software suite) software and interface is only 50 bucks.
You can get the X10 alarm system (DS7000) for about $100, and even get phone calls when tripped.
The really GREAT thing about X10! The cameras, lights, alarm, software... remote access, home automation. It all intergrates, all uses the X10 technology and allows you to continue to add-on and build your system as your needs and wants change.
P.S. Yeah..... the cheesy web site... nobody is perfect.