Has anyone actually gone online and purchased advance tickets for the Topkapi Palace? Rick links you to the Müze website, which seems easy to use -- but I don't want to buy unless I am certain they are going to email me a ticket which I can print out at home. And if so, does the ticket include the Harem? Rick says yes, but the website doesn't make this clear.
The only reason I want to buy in advance is I understand there are long lines at the Topkapi and want to avoid them. I will be visiting Istanbul (for the first time) in early October.