Can either of these have a HD attached, even a small one?
37.299 -> can only access the HDD when booted from floppy.
37.300 -> is unreliable in recognizing HDDs. Some work, some don't.
or do I need to get 37.350 rom version
If you decide to upgrade, you better go for a 3.1 ROM (40.63).
Bye,
Thomas