How can I print from the ipad

... I can usually find a printer with USB connection so I am guessing I just buy the camera connection kit?

Sounds like a reasonable thing to expect, but no, that won't work. The iPad is forcing the long-promised paperless office upon us.

A lot of airport kiosks can read the checkin barcode right off the iPad and print a boarding pass for the TSA goons to scrutinize. Don't expect the government to go paperless any time soon.

AirPrint printers have been slow to appear, but at least the selection is growing. In the meantime there are other alternatives, but you would need to install Printopia on a Mac with a shared printer, or the equivalent on a PC if there is one (I don't know of any).

You can't connect a printer via USB to the iPad. There are quite a few printers that now support AirPrint : http://support.apple.com/kb/HT4356 . Apart from those, some printer manufacturers have their own printer apps which support additional printers, or there are third-party printer apps such as Print Central For iPad and Print n Share which work with some.

No, the way of USB will not work. The only way other than air print is through computer. Some apps like "printer pro" allow you bonjour printing. You have free download the program in PC, which the USB printer link it. Then, it will print. (the program for PC need to download from their website.) I have a USB printer, and print my docs and email through the app. It is not printing fast, but you don't have to buy a new printer. They provide free app to print sample page. You may take a try before buy the app.