I use SecuritySpy on my mac mini. I run two Axis 2400+ video servers. They are connected to my network via ethernet cables. I'm really liking the software. Haven't made use of its full potential just yet. I can view my cameras over my iphone. There is an app specifically for Security Spy. It was not made by the author of the software and hasn't received great reviews so I've been hesitant to purchase it.
The framerates are not what you are looking for but it still does a great job. The software saves my clips using the H.264 codec into Quicktime movies.
