Technically you have the logs sawn first. Then as suggested stack and sticker them. That consist of placing ¾" square dry pieces of wood (stickers) at ~16-24" intervals between the boards to allow air flow to all surfaces. Your boards should be stacked so that the stickers are directly aligned on top of each other. If you're drying in your garage you might want to place a few fans to keep air moving around the wood, as you will have no natural air flow. Drying in the log form would take way to long...many years depending on the dia. of the log. Re-sawing is when you take a already sawn board and saw it again to make two thinner pieces. You always can have the log sawn into 8/4 and then re-saw it to get the thinner stock needed, but the 8/4 will take much longer to dry.
How big are these logs?? Unless you are thinking of buying a really big bandsaw you probably won't be able to saw the logs yourself. You'll need to take them to, or have someone with a bandmill come to you and do the milling. Then you will be able to use a bandsaw to resaw the boards.
Here's a good picture of a stacked and sticker pile of boards waiting to air dry outside -
If you are doing it inside your won't need the top cover, but I do recommend good air flow.
Also make sure you end coat the logs ASAP with something like Anchorseal to prevent end checking.
HTH,
Dave