Also, I want to create a thread linking to all of my listings on the marketplace so I can put a link in my signature to it. 99% of the listings are physical goods, but there's one or two that are/will be digital.
If you're selling physical items you'd have to place your listings here:
https://bitcointalk.org/index.php?board=51.0Unless your selling computer hardware in which case it goes here:
https://bitcointalk.org/index.php?board=75.0For your digital stuff you can place it here:
https://bitcointalk.org/index.php?board=93.0However, for the sake of simplicity if most of what you're selling is physical I would just stick in the Goods sub and all in a single thread. I doubt the mods are going to have a heart attack if you have a couple of digital items in your mostly physical item sale. Plus it means less links in your sig - easier to advertise.