I have sub-100 latency, top out around 150 with both clients open. I'm on a Core 2 Duo (e8400) with 4gig RAM under Windows XP (which only sees 3.25gig). My internet connection is rock solid - I work for the ISP that provides it, and my line stats are excellent.

lans83 - I use my mouse for movement same as you, which is why I'm looking for an alternative to keyclone movement. Setting up the do-not-pass and using /follow was my solution, but it's too laggy. I assumed it was just my setup, as I don't see this problem in any video I've ever watched. It's annoying, and kinda putting me off dual-boxing for now.