My wheel set up, is a Thrustmaster TMX Pro which cost me about $360 from memory, and from the reviews I saw, it is comparable with the Logitech equivalent. It has the benefit of having a clutch pedal as well, which a lot don't have, and you can add the cool gated shifter to it later if you choose.
I am gradually getting used to treating it more like I am driving a real car. My best times so far are around 2.35, but there is a lot more left in it.
@jeff43 I have searched for the 'ghost' functionbut I can't find it? How do I turn it on, as I think that will be super handy to work out which line is faster?