I have a nice a1200 which I love but it takes up desktop space. If you dont need AGA go A600 all the way.
I actually have an A600 NTSC that is broken, and I think its the MB.

Anyone know where I can repair it? I could get a PAL MB on ebay but i'd rather stick to NTSC as I use genlocks and things alot and dont know if they work with a PAL Amiga in NTSC screenmodes?