Panasonic and AXIS have been used widely and have a good support structure. I would strongly recommend using either of them.
Why don't you want to use these brands?
However...
Just about any IP camera will work as long as it meets the basic requirements.
1. It must not need to run any software (like DirectX) to show the image. Most "cheap" IP cameras use this method. 2. It may be helpful if you can isolate the image from all the branding crap they put around the control page. I.E. If you went to 192.168.1.25 for the front door camera you would normally see the image but there would also be some branding and other crap on the screen. You really want to be able to just show the image. 3. it would also be useful if it could output motion jpeg. I.E. individual images.
Talk to your supplier, they may have a loan unit that you can try before you purchase them.
