I was visiting Greg Donner excellent site (Wokbench nostalgia), and found about people complaining that they couldnt use larger hdd with Kickstart 37.300
Let me tell you, i have done it with no problems!!
I have a 2 GB disk (4 partitions), FULL of WHDLOAD games, and i installed Workbench 2.1 with no problems!!
I've also got kickstart 37.300 on an A600 and I've installed a 4Gb disk on it.