radiohead

[Soul Daddy]

Some pretty accessible individual songs are:

Fake Plastic Trees
Just
Black Star
Street Spirit (Fade Out)
Karma Police
Let Down
Lucky
Go To Sleep
Where I End and You Begin
Anyone Can Play Guitar
Prove Yourself

But like most have said, I'd get familiar with The Bends and go from there. It gets a bit more complex and if you start at OK Computer or beyond, it might take more listens to appreciate than you are willing to give it.