Thanks to the great information and help on this message board, i'm now a hacker. It was quite an experience, and I definitely agree with the person that said "sure you can buy one already hacked, but you won't learn anything". I've learned a ton, and i've been working with computers for years.
I now have a great V4 i-Opener, and even though it's fairly "stock" with the Rise chip and 32 megs of memory, it's great for surfing, checking e-mail, etc. What the real advantage of upgrading the memory? Is it worth it?
I only wish the display was better, so I may just do the VGA out mod and use a regular monitor.
Since I get the impression that I can spend all of my time and money adding accessories to my IO, what would you start out with?
My initial plans are a basic audio out, probably using the Adam Lotz speaker wire hack, but I may just try USB speakers. I would also like a CD-ROM drive eventually.
Also, does anyone use the SanDisk for anything? I remember seeing something about installing DOS on it, in case your HD fails so that you can at least boot to DOS.
Doing this hack is definitely worth the time and effort, honestly. I'm just glad I didn't end up with a gooped BIOS chip. I was lucky I guess.
Thank you again to everyone!