Talking of wheels, I keep getting tempted by an 8020 rig and Fanatec DD Pro for this, seem excessive though! What are others using?
I've got a G29 with upgraded shifter spring on an X Rocker XR rig, does the job for me, getting used to the brake pedal is a bit wierd to start but once you do I don't think you need any mods to it (most people tend to go down the GTEye route) or go with anything higher priced depending how much you use it and how competitive you are, I've entered manufacturer cups on GT Sport and come second in a few races so still pretty competitive.
I use it on Assetto Corsa, Project Cars, GT *, Car X and its great, the only downside is the spin speed is a bit slower than other wheels, and a little clunky noise too as it's cog driven, if you like drifting but again once you get used to that it's not an issue and you can 'overclock' it with a stronger power supply, as the standard one actually restricts the Amps it can draw, which speeds it up a bit.