@amigaksi
I've already got the original Denise chip. I do not particularely care about ECS modes (such as superhires, productivity etc), but I want to be able to switch between NTSC and PAL because lots of games don't run in NTSC by default. I do not remember if I require a SuperDenise for the video mode to be software switchable or is the 1MB Agnus alone enough?