When I bought my 2001 Tacoma DC a year ago, it had one fault -- only one key, and broken exactly like the op's. Ya gotta give Toyota credit for consistency, at least. There seem to be two groups -- those of us who have had our keys break like this, and those who will!
I got a new key for $10 at the dealer (not chipped for my year). I had them look up the original key number for my records, too, so I could have it in my vehicle file.
The TEQ key from my 1981 pickup is still going strong, though, and probably will be after I'm gone. The TEQ oil filler cap from that truck is now on my Tacoma -- my joss stick burned for good travel fortunes.
Don