We want to create resource calendars for our conference rooms but I'm hesitating because it doesn't look like there's a way for users to view the calendar. I understand that it's a mailbox, but how can users view it all the meetings on a calendar rather than just being able to book the resource? Thanks.

If i understand your question correctly, you are looking for a solution for the users to view the calendar of the resource mailbox before booking a meeting.If so, the users need to go to their calendar->New meeting request->Scheduling->Then add the room mailbox and they will be able to view it.Also ref to: http://www.msexchange.org/articles_tutorials/exchange-server-2007/management-administration/managing-resource-mailboxes-exchange-server-2007-part1.html - Figure 08.If you need to give full access, check: http://technet.microsoft.com/en-us/library/aa995916(EXCHG.80).aspx- Nagesh