Yes I know now :)
But brand new 50 D body costs $1200,and my 450 D was $580 and with this economic situation we have now...
Anyway I plan in a future to buy used 50D...
One more thing about 450D-when I look at viewfinder my tip of my nose constantly touches screen,which of course gets smeared with sweat.My nose is regular size(according my wife and friends) and I wear glasses  all the time.I am surprised nobody mentioned this in any reviews.
Greetings..................Wojtek