multi monitor multi computer setup help

Hi

I have 2 computers which I want to use simultaneously with 2 monitors.

I have them conncted together for audio applications that benefit from dual displays

Both computers have dual dvi graphics cards and I want to be able to switch between:

2 screens for cpu1
2 screens for cpu2
1 screen of cpu1 with 1 screen of cpu2

I want to be able to do it without rebooting. Is this possible?

I can't seem to find any info from the major kvm switch manufacturers

Could you reccomend a suitable device?

Thanks

Have a look here

but because I don't know what I'm looking for it is very hard.
Looks like I'm gonnna have to resort to two kvm switches, one just controlling a single monitor, one responsible for the mouse keys and other monitor.

Can't see another way around it that wouldn't involve a lot of Y cables (monitors only have 1 input) and complicated switching

help....