I was actually told not to use an LCD on a big box Amiga with RTG, cause it would short/blow a circuit on the RTG???
That's nonsense. Where did you hear that?
EDIT: Well, turns out it's not complete nonsense... (see below)
So I'm considering digging up my old bulky 17" CRT for the A3000 that will arrive here soon.
I much prefer CRTs to LCDs for Amigas because CRT resolutions are so much more flexible. That's important for an Amiga because you'll probably be working in a bunch of different screen resolutions. On a Mac/PC, you set your screenmode to match the native resolution of the LCD and probably never change it, and that's fine. But using a non-native screenmode on an LCD (usually) results in badly upscaled images or, worse, the edges of the screen getting cut off.
That said, LCDs have the advantage of being smaller and available. Make sure you find one that supports a 50Hz refresh rate - you'll need that if you want to do anything in PAL (games, some productivity software). Most usually only support a minimum of 56Hz or 60Hz, so look at the specs carefully before buying.
