The TechCrunch Office is buzzing! TechCrunch50, which starts Monday in San Francisco, will sell out sometime later today. There are approximately 50 tickets left, so we should be sold out and into a waiting list situation some time this afternoon. 1,750 people should be rolling through the event next week, matching last year’s sell-out crowd. All the press you could ever want will be there, too.

The 50 launching startups are in round three rehearsals at Sequoia Capital’s offices. The panel of experts are preparing their quippy remarks for launching companies, and a swarm of hungry demopit companies are preparing their presentations. As always there will be surprises, and not just Penn & Teller showing up to launch a new product.

Lots more info will be coming over the next three days on the TechCrunch50 blog. See you all on Monday!