64MB? seems a bit low doesn't it. I've got 64MB on my 030 miggy.
If you use a PCI solution such as Mediator then the RAM from your GFX card and sound card should help to some extent.
Don't forget your PCMCIA slot could be used for RAM too.
Other then that I have no idea, I'm not lucky enough to own a PPC board for my A1200.
I hope someone else can help more, good luck.
