Thats more or less what i'm going to try this afternoon, i've got some very thin enambled wire that i'm going to try runing under it's chip and out the bottom. can't think of a nice way of joining the two chips together so i guess it will be a solder joint at the bottom of the middle chip..

On another note which of the two chips is the Low half of the bank?

Is 64MB our max or could we replace the existing chips with 16mb versions and run the extra address line to the SA! 128mb would be intresting!

R.