I recommend the CSR wheel. I'd hold off on the shifters, unless you got the XL bundle. I have the CSR shifters, but I'm waiting on my interfaceone adapter to use a TH8RS shifter.
Also, I have the regular CSR pedals with the inversion kit. I'm content with the standard CSR pedals. I'll pick up a ClubSport Pedal V2 (or whatever) when it's released.