Slick hi-def KVM switching, DisplayPort or DVI?

[camelCase]

I am at the specification stage of two new Windows 7 desktop PCs that will share a yet to be purchased 30" display running at 2560 x 1600. Is KVM switching via DisplayPort or DVI viable at this resolution and would there be any loss of display quality?

I anticipate spending 90% of my time on 1 PC in any working hour with say 5 KVM switchs an hour. A 5 second switch delay would be acceptable.

I think my options are:

1. Use the dual inputs of the display but will the display's input switch buttons have a duty cycle that will hold up to 5 years of routine switching?
   
2. Use a high-end KVM switch.
   
3. KVM Switch just keyboard & mouse but crank my neck around to a second display. I suspect this will do my neck in long term.

 

[camelCase]

Thanks all, I suppose I should investigate the RDC option further. One motivation is that the primary computer should never be used for web surfing or have a direct internet connection.

I suppose if I have a dual LAN port in each PC, the RDC could run over a direct cross over lan connection between the two PCs. If I then manually firewall the inner PC to allow only the RDC port number things should be pretty safe no matter how compromised the outer browsing PC becomes.