So far it has always been possible for the startups we've funded to find acceptable names that aren't taken. If there's some name that they really want and someone is willing to sell for under $3k, ok, but it's not really necessary.
Now, not only do I not need the tool right now, but my brain has once again been trained to think of reading news.yc as an incredibly productive activity! Quick, set noprocrast to "double front"!