I found two links which seemed to sum up everything I needed to do. The first is a howto provided by the ever-excellent Tombunutu blog. This guide is more or less the best method for upgrading to a standard 8.10 install and then changing the kernel to that provided by Array.org which has all the correct modules pre-compiled. Array also follows new kernel releases closely with the correct modifications made so that you don't need to recompile drivers each time you upgrade the systems kernel.
I have to confess that after the straight 8.10 install and updating to the Array kernel I made one fix, listed at Ubuntugeek in an article about Atheros wifi. I followed method 2 and only needed to add ath_pci to the blacklist.
In summary my upgrade looked very much like:
1.) Install 8.10 from usb.2.) Method 2 of Ubuntugeek for working wireless.
3.) Change to the eee modified kernel from Array.
I know it's not a simple check-box selection + reboot, but I have to say that it's much easier than the process that needed to be done for 8.04. I'm thinking to try the new 9.04 Jaunty as frequently as I can to see if it delivers much of the "out of the box" functionality promised in 8.10.
Best of luck with your EEE upgrade, feel free to post your resources used in the comments. Please also share your success and problems (fail!).
--CafeNinja