HI DSB,
Yes there is an obs night on this weekend on Saturday, you are welcome to come along. I hope to be there, but if its clear, there will be plenty of members along as well.
Its a $5 donation for the Trust for non members to attend, payable to a WSAAG member like me who can pass it on to the Trust.
There is a closer motel at Faulconbridge (5 mins away) called Pioneer Motel which may suit you if you dont want the extra trek to Katoomba.
Drop me a PM, it would be good to catch up and I cna give you my mobile number for a chat (and so you dont get lost ya city slicker!)
Cheers
Chris