You need to start walking before you can run so my first suggestions for upgrading would be a 3.1 rom for your motherboard, and a megachip to give you 2mb of chip ram. I wouldn't spend the money on the 7.0 roms for the 2091 untill you are sure that you won't get an accelerator with scsi on it. You will also need OS 3.1 after you get the 3.1 rom.