The DLink Securicam DCS920 is a fairly popular camera given the quality of the image and the cost and the versatility of the system, but one of the more common complains has to do with the software. It doesn't run on 64-bit OS, you can't view multiple camera layouts and work in another window at the same time because the windows layout just doesn't allow this to happen, and it won't work with Windows Service Pack 3. System requires java-enabled browsers, DLink says IE. Other than this, the camera appears to be worth making the investment.
A super cool DLink wireless cameras is the DCS6620, a motorized wireless network camera with remote control and its own recording software. One of the limitations of this wireless camera is that it only works on Windows, however one of the most appealing camera functions is its zoom and resolution capabilities. More costly than many other wireless cameras, but a high quality and high performance wireless camera that will work well with your security or surveillance system.