I have to place an order or two in the very near future ... I've got a growing list:

-- saddle (another Brooks, of course)
-- pedals (the SPD kind with a platform on one side)
-- tights (not sure what brand yet, but long ones)
-- shorts (MEC's cheapest brand, of course)
-- tires (Conti 1000s UltraSports)
-- tubes (MEC's cheapest brand)
-- gloves (hopefully the same ones I've currently got, whatever they are)