I think your cheapest option (peformance versus cost) would be to get a graphics card solution for your a1200 tower. When people say get an A4000, you should know they mean get an upgraded A4000, including a CPU upgrade as well as graphics card solution b/c the stock A4000 040 will be cpu wise slower than yout A1200 because of the slow commodore cpu board. Such an upgraded A4000 will not come cheap. Also your ide interface will probably be faster than the a4000 IDE interface (mine was), unless you intend to uprade that on the A4000 (eg to scsi, but then you need scsi drives)
