lcd if ur short on space
professionals usually use crt for 3d designin and gamin
lcd's are still not meant for this completely
that doesnt mean its not good !!
its killer .. it looks amazin .. and for gods sake its soo thin and sweett
so whichever u go for u wont repent that much
problem with CRT=> bulk
problem with LCD=> u MAY not like it compared to a CRT ... depends on individual perception
i for one would love to have an LCD for gamin as well ... they are really clear and crisp ...
but viewing angles arent exactly very wide .. tho they are quite wide nowadays 9 upto 120 degreed)
what i suggest try havin a look at both before u make a decision
once u make up ur mind abt the quality .. only thing u need to decide is the size and ur budget

o BTW ... for crt go in for a 19"
for lcd go in for a min 17"