i have guitar hero wt , guitar only, but will be getting the drums once they are made available stand alone.
i havent played any rock band games because the guitar isnt compatible with rockband 1 and rock band 2 isnt out in australia, which is crap.
im loving ghwt tho. ive gone from easy to hard guitar in about 1 month. i have played bass career on medium, but dont play bass very often.