DITY, THED, DCOM, DIET! Those last two are taken though. I do like the other two. Like you said they roll off the tongue nicely. To bad they couldn't do THED as THE(BIG)D. Can you tell I'm bored. LOL
TDIR is much better, hands down. I hope EYSM changes to TDIR. It's even beautiful to pronounce the ticker. You can say it passionately, or profesionally, and no matter how you say it, it comes across potently. Go TDIR!