My original ST, with a 2 meg memory upgrade that I installed myself. Currently set up with a Supra 20mag HD, what I think is a late model SM147 mono monitor, and a Sony TV for color output.
I keep going different ways with this machine, but the best thing is probably to utilize the nice SOny and make it a game machine.
I also need to acquire a way to connect to modern file transfers… the ST version of the FujiNet… NetUSBee, perhaps?