Not sure how much you guys are into your racing sims but i'm planning on building this :-
http://www.ricmotech.com/RS1_RS3_DIY...s1-rs3-diy.htm
Its completely DIY, Use a Logitech G27 wheel and pedals which are detected by the 360, one, PS3&4 and your away, the whole thing can be built for less than £200 quid.
My plans were posted on the 23rd and they arrived yesterday, they are full size plans - you cut out, draw, and cut the bits out !.