It has been a while since I've needed a KVM switch for home use. For the input side, I'm looking for something that is going to be compatible with my Logitech G510 keyboard and G700 wireless mouse as well as HDMI -> DVI (Intel HD3000) from my laptop and DVI from my HD4890. I don't care about sound. Both my laptop and desktop are Windows 7 x64.
Some of the hangups I saw when researching were that some gaming grade peripherals and some wireless peripherals caused problems with KVMs and that some KVMs, in general, would have intermittent detection issues.
Unfortunately, it is out of my price range. I think I'm going to sell my G510, which I'm not crazy about anyway... Then get a really nice mechanical keyboard and call it done. I'm currently using an IOGear GCS932UB which works fine with my G700 when it is plugged in and my old, trusty 1st gen Saitek Eclipse.