There's a Chat button at the top of the forums that's directly linked to the IRC in my sig where the largest majority of us hang out; CShadowRun runs an IMBot there that also relays chat from the people in MSN/Yahoo chatrooms linked to IRC(Most of the time used by Zin Khaz and Vyndree when she idles there); that's the most likely and largest collection of us I believe :p It's got people chatting at all hours of the day and plenty of us, just pay very close attention to the notice/warning about Zin's links when you join ;)