From: Bill Dawson <whdawson(a)mlynk.com> the best choice is FD55GFV or the FD55E series. I happen to use the GFV. Before going to 3.5' drives. Also you need the drive personality board or turborom will not run in other than 40 track mode. If you have trouble finding a suitable set of drives let me know. I may add that I kept a 360k (DD48tpi) in the system as that is common media (odd disk finds I'd like to read with uniform). Also you can use 3.5" floppies (anyone that has jumper or switch for DS0-3). Use them with 720k media and it's nice. Another trick is to put a 3.5" drive internal and treat it like a hard disk. This is my current config and that gives me roughly 1.8mb of space (A:781k, B:360k, C: 781k). One of the CP/M oddities is once you get drive size orver 500k space as a problem seems to drop off quickly as an issue. Allison