Hi there! I want to know if Raidcall or Mumble uses less CPU and memory. Memory is on the task manager not hard drive. Skype uses around 150k memory when calling someone and that is quite a lot for a program that just lets you talk to other people. That isn't a problem to most of my games, but I'd still like lesser CPU usage. So, if you guys/gals can tell me which program that will let me talk to my friends that uses less memory and is free. Thanks!