Is AF in-body for beginner Canon DSLRs?

I know that Nikon beginner DSLR's require the AF to be done by a motor in-lens, rather than having the motor in-body. Are Canon beginner (ie t3i, t2i) DSLR's the same way, or do they have an AF motor in-body?

All the AF is done by the lenses. There's no need to worry about not having AF

The issue to which you're refering is only an issue with Nikon cameras if you buy older AF and AF-D lenses… Newer AF-I and AF-S lenses will autofocus just fine on any current Nikon camera.

Conversely, Canon EOS cameras have never had this issue. The EF and EF and EF-s lenses stands for Electro Focus, meaning the connection to the lens is entirely electrical rather than electro-mechanical as was the case with other AF cameras available from Nikon, Minolta, and Pentax at that time.

That's true. I own two Canon dslr cameras and 4 Canon lenses - all Canon's lenses in the EF and
EF-S class (used by Canon consumer dslr cameras, have the motor in the lens.

I guess you have to choose.

Buy new or used AF-S or AF-I Nikkor lenses for a Nikon dSLR or if you EVER expect to buy a full frame Canon camera like the 5D or 1D body, do NOT buy any EF-S lenses for your entry level Canon dSLR. They will have to be replaced if you need lenses for such a full frame Canon EOS camera

There are NO silver bullets.

All Canon DSLR models will auto focus with all of their lenses.

Nikon D3100, D5100 and other lower previous models don't have it. However, there are plenty of lenses that will work normally with them.

Here's a Lens Buying Guide - http://www.the-dslr-photographer.com/2009/11/buying-a-lens/

Canon makes it in-lens. Pentax does it in-body. Nikon does it in-lens but not all the time.