I signed up with Gamestop to be notified as soon as they start taking preorders for the PS4. I figure there's going to be massive shortages as usual when both consoles launch this fall. I'm going with the PS4 initially this time. I got burnt by the 360 hardware failures (twice) last time.
In this day in age I try not to pre-order anything to do with video games anymore. Too many people are getting burned by doing so. Nobody seems able to deliver a stable working system anymore. Even if I did have the money for it, which I probably won't. I like to wait a year or two until they get the bugs ironed out of consoles. Even for games I want I don't buy them until at least the initial buyers have had a chance to play it and review it to find out what is wrong with the game. I trust the professional reviews from game magazine and web sites about as far as I can throw my car.