Nah my mate Bill reckons you need 640k for programmers, so I went with the biggest I could find.
There's a lot more code to go into this project yet, I think I am going to hit the 32k mark by the time it is finished...
Thanks for the confirmation of Eagle - the challenge from my reading to date is knowing how to track down the part footprint you want to put in the design.
Your custom boards sound interesting - do you have a link where I could check them out? I'll go research skillet method now...
My ambition currently far outstrips my ability, but the ideas I am having are keeping me awake at night. XD