Here is an (in)famous wedding photographer who was using a Rebel, and an 18-55 kit zoom and a pokey 70-300...this is kind of the way I think many customers feel about people shooting "professionally" with entry-level equipment. The entire Rebel T2i,T3,T3i model cluster-up is an incredible mess...I cannot figure out what Canon is trying to do, except a Sony-style flooding of each and every single price point with "something" that they "hope" will get a sale for the brand at the expense of a competing brand; otherwise they would do what has traditionally been done by Nikon, which is to try and build the best possible camera for each "slot", and then achieve high unit sales of fewer models with much more clearly-defined boundaries between the models. Like say Nikon D90, then Nikon D300s...not T2i,T3,T3i,and 60D all totally clustered-up and confusing what Canon refers to as end-users.
Honestly, I have no idea why you'd switch from Pentax to Canon when the Canon would be a Rebel...
If it were ME, and I were switching systems TODAY, I'd look at a Nikon camera for better light metering (color-aware, not color-blind) and better flash metering (color- and distance-aware) and better multi-flash/remote flash control (15 year head start on Canon on both color-aware ambient and flash metering and control). Besides, Pentax and Nikon share a lot of similarities in lens mounting/dismounting, focusing directions/SONY-made sensor technology, and body and control design ethos. Pentax and Nikon cameras are actually reasonably similar, whereas Canon's tiny buttons and weird controls are vastly different from those of Pentax or Nikon.
WHATEVER you want to get--make SURE it feels good to you!!!!!!!! Don;t let me, or anybody else make the decision on how to spend YOUR dollars. I shoot Canon most of the time nowadays, but don't like the bodies. The files are good though, and it's all payed for.