Well, I successfully multi-boxed three toons today in Shatt with no crashes. I ran the Performance Monitor and noticed some spikes in my memory, but there was no discernible difference in playing 3 vs 1 really.

Thank you everyone for your help there!

Now, to figure out which software to go with... I'm no coder, or I would stick with HKN, but having difficulties setting up 3 and where I want them positioned, along with dropping in my passwords and usernames. I've managed to get KC up and running on a 24-hr trial, and it is nice, but I miss the mouse broadcasting feature that HKN has (little things like setting up macros or killing sound on all my clients is faster to do with mouse broadcasting, as well as anything with ground targets). I'm going to give ISBoxer a whirl as well on their trial, see how I like it... I'm just concerned there about the subscription costs. Any suggestions on those three softwares?

Thanks!