Mr. Adams made me giggle myself silly at a time I wanted to cry. He rocks! Err.... rocked I guess.

I own The Ultimate Hitchhiker's Guide: Complete and Unabridged leather-bound (bad vegetarian, but it was Adams!), a few of the paperback versions of the Dirk Gently series, his biography "Wish You Were Here," and I still have the acient DOS game. It's abandonware now and perfectly legal to distribute copies of. You can find a DOS emulator version on one of the abandonware sites or I can get you the original DOS one. It still works under Windows XP's command prompt, no need for DOS-Box.
I used to own the tv series, but it went bye-bye in one of the many moves I made.