Thought I'd chime in for people wanting to try out further acts or asking for waypoints - you can do this yourself.
If you are in Inferno, you can access any waypoint in Inferno, including acts you haven't gotten to yet. The reason so many 1k dps weapons appeared on the AH early is due to this menu glitch. You can run a series of A4 Inferno jars, chests, and weapon racks without ever having to fight a single mob. I've found about 10 1k dps weapons (925-1010ish) doing this - Resume Game and 2 minute smash and grab repeated endlessly.
Select Hell Prime Evil quest, and start the game. Take the waypoint to the collonade/Pinnacle of Heaven. Exit the game after taking the waypoint. Join a public game in Inferno for that same quest - this will now be available, even though you haven't gotten that far. Join that game and take the waypoint, and exit.
Now you should see on your character screen, that quest with Inferno below it. Resume game and you are in Inferno where you just played Hell. Take the lvl 1 wp, and there is an area where you can open chests, break jars, and check weapon racks for drops. Sometimes mobs drop out of the sky; just run and pickup any blues/yellows, which may take 5+ games til you see a single one, but once you are used to this, you can do it in under 2 minutes. Simply Resume, smash chests and check any weapon racks and chests for your slight chance at 1k+ dps weapons.
Choose the last A4 Hell quest (sub quest), and you have access to all A4 Inferno waypoints doing this. You can buy the Inferno Herding Staff recipe this way also (after Izual quest) from the merch by the healer, so you can run A1 Whimsyhshire.