I've had them all - LC LC II LCIII LC475 Q605.
I'd go with the Q605/475. I have 128MB RAM, ethernet, and a full 040 loaded with a 2 gig internal drive. I have an external SCSI tower with CD, Tape, Syquest, and an 9 gig drive.
It's running at 25 Mhz but I plan to bump it to 33 Mhz (that's...