I read your Slipstick link on resources (thanks!). Do you have a
preference regarding the different methods they list (see below)?

1) Maintain the resource as an Exchange Server mailbox and ...
.... a) use a server-based script or event sink to accept bookings, or
.... b) set it up as a resource so that Outlook 2000 and later can book
it directly
.... c) use a delegate to handle meeting requests automatically or
manually, or
.... d) allow at least some users to add and edit items in the
resource's calendar directly

2) Maintain the resource as an Exchange Server public folder holding
appointment items