I'm crop, 1.5 i think, so my 55mm is roughly 83mm. Doesn't bother me though!
Ignorance is bliss. 
lol
Whilst the focal length effects the magnification, if also effects the perspective. 35mm on a crop will give you a 'natural' perspective. 50 mm on a full fat will give you a natural perspective.
To illustrate the difference in perspective take a look at
http://www.photozone.de/focal-length-and-perspective note how the subject stays the same size in the frame.
Also google vertigo effect as this is the same thing but for movies.
I was crop got myself a 35mm. Brilliant loved it. Such sharp pictures. Made the jump to full frame to realise my 35mm lens is DX... Doh!
You could always put the camera in DX mode
