Here is a trip report from our trip last month, including Half Dome. It's a bit after the fact, but given the loads of info I gleaned from this site, I thought I'd hopefully educate/entertain a future hiker and keep the cycle going... Enjoy!
http://14ers.com/php14ers/tripreport.php?trip=14977&cpgm=tripmain&ski=Include
We had planned on heading up with the cables down on May 14th (harness & prusik ready), but were pleasantly surprised when we picked up our wilderness permit and found out the Rangers would be putting the cables up! We changed plans for the 15th with an alpine start from LYV - I believe we were the 4th and 5th people up for the season (with the cables up).