I have some FI8908W cams at work, they aren't 720 but the quality is good enough and they work in fairly low light. Sun glare completely renders them useless however. PTZ works great and you can log into each camera via the internet. Software wise Foscam bundled software is pants but a good third party IP cam software gets round that
A lot of "HD" webcams are iffy quality, and usually just upscale whatever crappy sensor they have to output 720/1080.
Can I ask what the use is?