Man Viper, you better stop talking about my 48G like that. I've never played around with any TI's above 86 much, but I'd put my HP up against them, especially for engineering stuff. And engineering profs know the 48G, not the 92.
I've seen instructions for making a Graphlink, and they didn't look like too much fun(as opposed to my 48G's serial cable that I made out of a mouse and a crayon)
And the HP's got BurgerTime