The graphics are obviously a bit weak and slow by today's standards, but still pretty impressive at times. I think a good bet would be an internal scandoubler, that way you can use a modern PC monitor, and it looks much better than a TV or 1084 by far!
The ide fix is a decent setup, but it's difficult to use in a desktop 1200. If you don't mind leaving the case loose or modifying, go for that. It's cheaper than a PCMCIA scsi setup, and if you decide to get a tower it will work great. The ultimate would probably be Elbox's power flyer setup...speeds up the drives quite a bit, but also better in a tower unless you don't mind the huge cable out the back.
A CPU card is a good idea...the 020, especially with fastram added, was decent for it's time but a bit slow...get at least an 060. They're really fast compared to the 020! If you plan on running 3.9 you will at least need extra ram, but an 060 is definately ideal!
Anyway, just my thoughts...
