The very first week we did Molten Core, back in the late-March/early-April timeframe, a very nice bow dropped. My character bid and got it. We were happy, but we needed one for his character too. We went to Molten Core nearly every week, with the exception of about a month or so when the guild organizing the raid had drama-related issues. That bow did not drop again until last weekend. Keep in mind that the only thing standing between us and a better bow at this point is the lack of an Onyxia run and our determination not to use the warlock method to kill the last demon, the latter of which we might get over should we get the sinews. Its nice that we finaly have the second bow, but the wait was far too long.
I am starting to really look forward to the new honor system, if only as a more sure-fire means of upgrading our equipment.