I'm sorry porter, not trying to make enemies already, but you are incorrect. I just formatted a seagate 40GB IDE drive in my Frankenstein 630(6200 motherboard) that I pieced back together(use together very loosely) and it formated just fine. The pic is from my cell phone, the machine is kind of in pieces, but just wanted to make the point. There is no upper limit (besides 2 terabytes) on regular HFS. What apple says and what is reality are 2 totally different things, I didn't think my brain was that dried up yet
I'd also like to add that a simple 4K file takes up 1.1MB's 8-o on a regular HFS formatted 40GB HD. So if you are having issues with using an HD larger than 2GB's on a machine, it is because, 1. It is not supported by the setup utility, or 2. you are trying to use some off the wall adapter.enjoy!
http://img.hostmyjpg.com/391674085_macos.jpg