Heya,
The T2i with a 50 F1.4 and 100 F2.8, has plenty of quality, is plenty fast. What's not to like? Can you be specific at all? The fact that you don't know the difference between EF and EF-S, etc, really just tells me that you should probably not purchase anything more at all until you know more about the tools you're spending money on here. What is it that's not meeting your expectation? Can you try to put what's not working out into words? What's not to your taste? If you don't like your photographs, I have bad news for you, you took them. It's not the camera's fault, nor the lens. But if you can at least explain what exactly is going on that you're not enjoying, it will help guide you towards what you may be better suited towards. Buying an even more expensive camera, and even more expensive lenses will not automatically make photography better for you.
Post an example of a photograph that you like and the kind of stuff you prefer to do.
Post an example of a photograph that you don't like, and feel like your current camera/lenses are holding you back on.
Best guess: you don't need to spend any money at all.
Very best,
:: My 
