Cureently, many IP KVM requires Java for remote access, but To maintain Java on your PC as secure state requires many works, such as installing secure patch or rebooting your PC. So I try to find Java-free IP-KVM, and I've purchased IP KVM with VNC protocol as following:
ADDERLink ipeps VGA
Prices is about $700. This one works very fine in my network.
You can access your servers that are attatched to ipeps VGA by using VNC client. VNC client software that I use is RealVNC. You can download and install from the following site.