KVM

I'm looking at an IP-KVM. I don't need anything high res as I only need to see Linux consoles, BIOS, and RAID. What I am looking for: Non-Java client that runs on Linux (or a WebUI that will deploy a decent RDP or VNC session over SSL). Decent/configurable key mappings (ie, I've had a KVM a while ago where you had to pull down a menu for F-keys - not cool). Decently priced dongles (say ~$100?) I started looking at the Raritan devices (which can be found really cheap on ebay) but I only see a Java client and no mention of installing a client on Linux.