I hate viewfinders.

Hello : I hate viewfinders.
A couple of months ago I managed to put my hands in a canon EOS t2i / 550 D.
The camera was great but I hated the viewfinder.
I would like to buy a APS-C sensor camera.

Would it be possible , comfortable , to use A sony alpha DSLR 500 or 580 in live view mode only ?
And what about the new sony a33 ?
Thanks a lot for your input.
I live in portugal.

Here it is virtually impossible to return cameras once they are bought..,so better make the right choice before buying.

This is the reason I have so many questions concerning my future camera.

Thank You for your input.