I Can't tell you about the exact dates, but I can help you or anyone with the hotel/motel.

I would advise everyone to stay in Burnaby. There are plenty of decent hotels/motels and the location is very central. It is close to most public transportations and is only 20 minutes away from Downtown.

If there is a big group of you guys are coming over, perhaps we can get everyone a group discount. Let me know, because the group discount can be just a phone call away. Who ever is interseted can PM me. Please advice me on how much you guys want to spend as well.

If the group is large enough, would you guys be interseted in a organised tour of Vancouver as well?