If you are waiting for the PC version of Rage and you have decided to purchase it from Steam, there is good news: you can start pre-loading Rage immediately after purchasing it.
Of course, it does not launch till Tuesday, but if you have a slower connection then it might be worth it to get a head start, as you have 25GB to download ahead of the Tuesday launch.
Of course, if you choose to wait till Tuesday to download it all, don’t expect it to go very fast, no matter how fast your connection is.